Legal disclaimer: PI laws vary significantly by state and change frequently. This article is for informational purposes only and does not constitute legal advice. Consult a licensed attorney in your state for guidance on specific situations.
Private investigators operate under the same laws as ordinary citizens — no special powers, no immunity. They can conduct surveillance in public, access public records, and interview willing witnesses. They can’t trespass, wiretap, impersonate law enforcement, or hack private accounts. Firearms and audio recording rules vary significantly by state.
A lot of people assume private investigators operate in some legal gray zone — free from the constitutional constraints that tie law enforcement’s hands, able to go wherever the case takes them. That’s not how it works. PIs don’t have special powers. In most situations, a licensed PI has exactly the same legal authority as any private citizen. The job is figuring out how to get the information you need while staying firmly on the right side of that line.
The rules vary by state — sometimes dramatically — but the core framework is consistent nationwide. What follows covers the major legal boundaries every PI needs to understand, followed by a full state-by-state reference guide to audio recording consent laws and firearms rules.
Get Licensed — and Know What That License Does (and Doesn’t) Do
In states that require PI licensing, getting your license isn’t just a bureaucratic box to check. The licensing process — background checks, experience requirements, exams — exists specifically to make sure PIs understand the legal limits of the job. That little card will get you out of a lot of awkward conversations when a neighbor calls the cops on you during a stakeout. And it will. But it won’t get you out of trouble if you cross a legal line. A cop who sees a PI doing something unlawful doesn’t see professional credentials — they see someone who should have known better.
One thing your license definitely won’t do: transfer to another state automatically. Some states have reciprocity agreements; others allow out-of-state investigations that originated in your home state to spill across the border under limited conditions. Know the rules before you cross the state line — assuming your home-state license covers you elsewhere is a significant legal risk.
What PIs Can Do: The Legal Toolkit
The legal toolkit available to a licensed PI is substantial — it just requires knowing where it is and how to use it.
The internet has transformed investigative work. The majority of research on most cases now happens before a PI ever leaves the office. Public social media profiles can be a valuable source of information — people often post their locations, activities, and statements that are directly relevant to a case. A worker’s comp claimant who can’t lift 20 pounds but just uploaded a video of himself moving furniture is making the PI’s job considerably easier. Beyond social media, there are several categories of data sources that give licensed PIs access to significant amounts of relevant information:
- LexisNexis — A large aggregator of legal and public records, used by licensed investigators, attorneys, and law enforcement. It consolidates property records, legal filings, business records, and other publicly available information into a searchable platform. Access is subscription-based, and use is governed by applicable privacy laws, including the FCRA and DPPA.
- City and County Recorders — Births, deaths, property transactions, and other legal events are recorded at the local government level. Even records not available online are public records and can be retrieved in person for a nominal fee. State agencies may also provide professional license records and, for authorized purposes, certain driving records under the Driver’s Privacy Protection Act (DPPA).
- Business records — Businesses have fewer privacy protections than individuals. The secretary of state’s office in any state can provide ownership details, registered addresses, and business activity records that are often directly relevant to investigations.
On the ground, surveillance conducted from public spaces is generally lawful. If your subject is in a place where a passerby could see them — a street, a parking lot, a restaurant — you can watch, photograph, and document them within applicable laws. In many states, retrieving discarded trash that has been placed at the curb for collection is also considered lawful, on the theory that abandoned property carries no reasonable expectation of privacy — though this varies by jurisdiction and local ordinance.
What PIs Can’t Do: The Hard Lines
The “can’t” list is longer than the “can” list, and some of these carry serious criminal penalties.
No trespassing. Private property is private. You can’t enter someone’s home, office, or yard without permission — and “unlocked” doesn’t mean “permitted.” Entering an unlocked vehicle is still a crime. Some states have laws or court decisions that may limit surveillance of a subject who has taken steps to object to being observed, though the scope of these provisions varies and is not uniform across jurisdictions.
No unauthorized access to accounts or records. You can’t log into someone’s social media account, access their email, or pull their credit report without their consent — even if you’ve obtained their login credentials or Social Security number through lawful means. Federal privacy statutes, including the Stored Communications Act and the Fair Credit Reporting Act, cover these areas with serious teeth.
No wiretapping or intercepting communications. Federal law and virtually every state law make it a crime to intercept private communications — phone calls, text messages, emails — without authorization. This is not a gray area. Federal wiretapping convictions carry prison time. For a full breakdown of the federal statutes that govern this area, see private investigators and federal electronic surveillance laws.
No impersonating law enforcement. Pretending to be a cop, federal agent, or any public official who has legal authority to compel cooperation is a crime. Certain forms of pretexting — using a cover identity or false pretext in conversation — may be lawful in limited contexts, but impersonating law enforcement or unlawfully obtaining protected records is prohibited. What you can never do is claim official authority you don’t have.
No pretexting for financial or phone records. Contacting a service provider and impersonating the account holder to obtain call records or financial data — known as pretexting — is a federal crime. A widely cited example is the Hewlett-Packard boardroom leak investigation of the mid-2000s, in which investigators contracted by the company reportedly used pretexting to obtain call records for HP board members and journalists. The case resulted in criminal charges in California state court against investigators and company employees; one investigator also faced federal charges. The case is frequently cited in discussions of PI legal limits and led to tighter federal restrictions on pretexting for phone records.
Surveillance: What’s Legal and What Isn’t
The public/private line is the core of surveillance law. Anyone in a public space — visible to any passerby — has no reasonable expectation of privacy. You can photograph, video, and follow them all day within traffic and anti-harassment statutes. The moment they move somewhere with a reasonable expectation of privacy — their home, their backyard, a private room — the rules change completely. For a deeper look at how surveillance is conducted in practice, see the fundamentals of PI surveillance.
Photographing someone through their bedroom window from a public sidewalk is not a loophole. Courts have consistently held that a person’s reasonable expectation of privacy doesn’t evaporate just because they can technically be seen from public property. Violations can mean criminal charges and civil liability.
Drones complicate this further. Using an unmanned aerial vehicle to surveil a private property puts you into privacy law territory that is still being actively litigated in many states — and drone operations are also subject to FAA regulations regarding flight zones, registration, and operator certification, which apply regardless of the investigative purpose. Know both your state’s current privacy rules and applicable FAA requirements before deploying a drone on a case. For an overview of the tools and technology involved, see the advanced surveillance technology PIs use.
The question of where surveillance crosses into harassment or stalking is one PIs need to take seriously. Following someone persistently, repeatedly appearing at locations connected to them, or conducting surveillance in a way designed to intimidate, can expose a PI to civil and criminal liability regardless of whether any single act was technically lawful.
Audio Recording: One-Party vs. All-Party Consent
Sitting in a diner booth next to your surveillance target and listening to their conversation? Generally lawful in most jurisdictions. Pulling out a recorder? That depends entirely on what state you’re in.
The U.S. is divided between one-party and all-party (also called two-party) consent states for audio recording:
- One-party consent states allow recording as long as one party to the conversation has given consent. If you’re a participant in the conversation, you can record it without telling the other party. If you’re a third party to someone else’s conversation, you need at least one of those parties to consent.
- All-party consent states require every person in the conversation to know it’s being recorded. Covert recording — including wearing a wire — is generally not legal in these states.
Some states have mixed rules that vary depending on whether the conversation is in person or conducted over the phone. Interstate calls — where the parties are in different states with different consent laws — can create complex jurisdictional questions, and the more protective state’s standard may apply. When working across state lines, consult an attorney before recording any conversation.
The state-by-state reference section below covers the consent standard for all 50 states and D.C.
GPS Tracking Laws
GPS tracking is one of the most frequently misunderstood areas of PI law, and the rules have tightened significantly over the past decade. In general, placing a GPS tracker on a vehicle may require consent or ownership authorization, depending on state law, and in many states, a PI cannot simply attach a tracker to a subject’s car without a legal basis to do so.
There are exceptions. In some domestic and corporate cases, a vehicle owner (such as a spouse with joint ownership) may be able to authorize GPS tracking on that vehicle. In those situations, the client’s ownership interest may provide legal justification — but the specifics vary by state. Phone-based GPS tracking — using location data from a device — is governed by its own set of federal and state rules and generally requires consent or legal process.
When in doubt on a specific case, get legal advice from an attorney familiar with your state’s surveillance laws before deploying any tracking technology.
Can PIs Carry Firearms?
Private investigators don’t have special firearms rights. A PI carries a firearm under the same laws that apply to any other citizen in their state — no more, no less. Some states require additional permits specifically for armed PI work; others treat armed PIs identically to any other licensed carrier. The state-by-state firearms reference below covers what each state requires.
The practical reality: most PI work never involves a weapon. Surveillance, records research, interviews, process serving — none of these require a firearm. Many experienced investigators choose not to carry at all. If you do carry, you’re responsible for knowing and following your state’s rules completely — including any additional requirements that apply specifically to armed investigators in your state, which may differ from general concealed carry law.
Can PIs Carry a Badge?
Many states restrict PI badges or strictly limit when and how they can be displayed. The reason is straightforward: a badge creates an impression of official authority. Displaying one in a way that causes someone to reasonably believe they’re dealing with law enforcement is impersonating an officer — a criminal offense in every state.
In states where badges are permitted, the guidance is to keep them out of public view and use them only in narrow professional contexts, such as identifying yourself to arriving law enforcement when working a security or executive protection assignment.
Can PIs Make Arrests?
Private investigators have no special powers of arrest. Restraining someone without legal authority exposes you to false imprisonment liability regardless of whether you think they’ve done something wrong.
What PIs do have — in some jurisdictions where citizens’ arrests remain lawful — is the same authority as any private individual to detain someone they’ve personally witnessed committing certain classes of crimes, typically violent felonies or misdemeanor property crimes caught in the act. Citizen’s arrest laws vary significantly by state and have been narrowed or repealed in some jurisdictions in recent years. This is the same authority your neighbor has — not a PI-specific power. It comes with real legal risk if you get it wrong. The standard advice from experienced investigators: call the police and let them make the arrest.
Can PIs Run License Plates?
Licensed PIs may be able to access certain DMV information for authorized purposes under the federal Driver’s Privacy Protection Act (DPPA), but the scope of access varies significantly by state and by the nature of the investigation. The DPPA defines specific permissible purposes — which include investigations by licensed PIs in some circumstances — but it also restricts access to sensitive personal information such as home addresses. Some states layer additional restrictions on top of the federal baseline. This is an area where the rules have tightened over time; know your state’s current DPPA-compliant procedures and don’t assume that access available in one state applies in another.
What About Process Serving?
Process serving — delivering legal documents like subpoenas, summonses, and divorce papers — is a lawful activity commonly performed by PIs in many states. It’s worth noting that some jurisdictions separately regulate process servers, and the rules for what constitutes valid service vary significantly by state and by document type. PIs who take on process serving work need to be familiar with the procedural requirements of the specific jurisdiction, since improper delivery can invalidate the legal action entirely. Where a PI’s license doesn’t automatically authorize process serving, a separate registration or authorization may be required.
Audio Recording Consent and Firearms Laws by State
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- District of Columbia
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
State-by-State Guide to Audio Recording Consent and Firearms Laws for PIs
Alabama
Alabama Private Investigation Board Administrative Code
- Firearms: No weapons permit required for open carry unless you are carrying openly in your vehicle; then, or if you wish to carry a concealed weapon, you must obtain a Pistol Permit from your local Sheriff, if you meet these qualifications:
- You are at least 18 years old
- No firearms safety training requirement
Audio recording consent: One-party – you must have the consent of at least one party of a communication in order to use any device to record it
Alaska
– No state standards regarding private investigators, but two local regulating bodies:
- Anchorage – Code of Ordinances Title 10, Chapter 10.40, Section 10.40.020- Private Detectives
- Firearms: No special weapons permit needed for open carry or concealed carry
- Audio recording consent: One-party – it is a misdemeanor to use an electronic device to hear/record a conversation without the consent of at least one party
- Fairbanks – Code of Ordinances, Chapter 14, Article IV- Private Detectives
- Firearms: No special weapons permit needed, see above for Concealed Handgun regulations and permit
- Audio recording consent: One-party – you must have the consent of at least one party of a communication in order to use any device to record it
Arizona
Arizona Revised Statutes Chapter 24-Private Investigators
- Firearms: No special weapons permit needed for open carry or concealed carry
- Audio recording consent: One party- you must have consent of at least one party to legally intercept any wire or electronic communication. Consent is not required for taping a non-electronic communication; however, if the person you’re recording does not have a reasonable expectation of privacy for that communication
Arkansas
- Firearms: No special weapons permit needed for open carry; if you meet the following qualifications, you may obtain a Concealed Handgun Carry License:
- You are a U.S. citizen/permanent legal resident
- You have been a resident of Arkansas for at least 90 days
- You are at least 21 years old or 18 and in the military
- You do not suffer from a physical/mental problem and have not attempted suicide
- You pass a criminal history and background check, with fingerprints
- You are not a substance abuser
- Complete a State Police-approved CHCL firearms safety training class no more than six months before applying
- Pay the license fee of $142.11 (if you are age 64 or younger; $90.61 if you are 65 or older)
- Sign allegiance statement to the U.S. Constitution and the Arkansas Constitution
- Audio recording consent: One-party (for in-person or electronic conversations)
California
California Private Investigator Act
- Firearms:
- To purchase a handgun, you must:
- Be at least 21 years old
- Be a U.S. citizen
- Provide proof of California residency
- Complete a safety course and receive a Handgun Safety Certificate
- Obtain a Certificate of Eligibility Application and have your fingerprints taken
- Undergo a 10-day waiting period while your background is checked
- You must then obtain a Firearm Permit, which requires that you:
- Are a U.S. citizen
- Pass an 8-hour course in the Power to Arrest
- Pass a 14-hour course in carrying and use of firearms
- Submit a Firearm Permit Application with $80 application fee, fingerprint form, and fees to the Bureau of Security and Investigative Services
- Once approved, you may not carry any other caliber handgun that is not listed on your permit, and you or your employer must carry $1 million in insurance
- To obtain a Carry Concealed Weapon license, you must contact your local Sheriff’s office/city police department
- To purchase a handgun, you must:
- Audio recording consent: All parties to a conversation (oral or electronic) must give their consent in order to be recorded
Colorado
- Firearms: Open carry/vehicle carry is permitted statewide. Concealed carry permits may be obtained from the Sheriff’s office in the county in which you live (most counties require that you be at least 21 years old, a resident of the state and county, and have attended a firearms safety training course)
- Audio recording consent– One party- if you are not involved in or present during an oral or electronic communication, you need the consent of at least one party in order to record it
Connecticut
- Connecticut General Statute 29-153
- Firearms: You must have a permit to carry a weapon outside of your own home or place of business. A carry permit is issued, which is used for both open and concealed carry. You qualify for the Connecticut State Pistol Permit if you:
- Are at least 21
- Are a resident of the U.S.
- Pass a criminal history and background check, with fingerprinting
- Have not been in a psychiatric hospital for the past year
- Have not attempted/threatened the use of force against another
- Pay a fee of $70
- Complete the NRA’s Basic Pistol Course
Audio recording consent: All parties must consent to record a telephone conversation. Wiretapping requires one-party consent
- Firearms: You must have a permit to carry a weapon outside of your own home or place of business. A carry permit is issued, which is used for both open and concealed carry. You qualify for the Connecticut State Pistol Permit if you:
Delaware
Delaware Code Title 24 Chapter 13: Private Investigators and Private Security Agencies
- Firearms: No special permit is required for open carry. For concealed carry, you must file the Application for a License to Carry a Concealed Deadly Weapon if you meet these requirements:
- You are at least 21 years old
- Have your application published in a newspaper within your county, ten days before filing your application – you must get an affidavit from the newspaper when this is completed
- Be fingerprinted/background checked by the State Bureau of Identification
- Get references from five people who live in your county and know you well (no one who lives at your address is eligible to be a reference)
- Complete the application and have it notarized
- Include two passport-sized color photos of yourself
- Include the filing fee of $65
- File the new application and a duplicate copy at your county’s Prothonotary’s Office
- When your application is approved, you must complete an approved gun course within 90 days
- Audio recording consent: All parties must consent to the recording of electronic or oral communications
District of Columbia
D.C. Municipal Regulations and D.C. Register Chapter 17: Private Detectives
- Firearms: Handguns must be registered in the District of Columbia. You can only register a gun if you meet these qualifications:
- You are at least 21 years old
- You pass a criminal history check
- You have not been acquitted of any crime by reason of insanity or chronic alcoholism in the last five years
- You have not been committed to a mental institution in the last five years
- You do not have a history of violent behavior
- You have not had a civil protection order filed against you
- You complete an Online Firearms Safety Training Course
- You file an Application for Firearms Registration Certificate with a $13 fee
- You must register for a Concealed Carry Pistol License if you meet these requirements:
- You completed 16 hours of firearms training, including range and self-defense
- You must explain your need for a Concealed Carry Pistol License
- Submit the Concealed Carry Pistol License Application to the D.C. Metropolitan Police Department
- Audio recording consent: One party must consent before a conversation/communication may be recorded
Florida
Florida Department of Agriculture and Consumer Sciences Private Investigator Handbook
- Firearms: You are not permitted to carry more than two firearms on you at all times. For open or concealed carry as a private investigator, you must apply for a Class G Statewide Firearm License and meet these qualifications:
- You are at least 21 years old
- You are a U.S. citizen and a current Florida resident
- You pass a criminal history check and fingerprinting
- You have completed 28 hours of range and classroom training in the year preceding the application
- You complete the Application for Class “G” Statewide Firearm License and submit it with $154 in fees
- Audio recording consent: All parties must consent to the recording of electronic, wire, or oral communication.
Georgia
Georgia Board of Private Detective and Security Agencies Department 509
- Firearms:
- You need a Firearms License for open carry, and must meet these requirements:
- You are 21 years or older
- You are a Georgia resident
- You pass a criminal history /background check and fingerprinting
- You pay a $75 fee plus any extra county fees
- You appear in person at your local Probate Court with your fingerprints, a self-addressed stamped envelope and your driver’s license
- You need a Concealed Carry Permit for concealed carry, which is also issued by the county in which you live. Ask for an application at your local Probate Court
- You need a Firearms License for open carry, and must meet these requirements:
- Audio recording consent: One party must consent in order to record an electronic, wire, or oral communication
Hawaii
Hawaii Administrative Rules Title 16 Chapter 97- Private Detectives and Guards
- Firearms: As a private investigator in Hawaii, you are prohibited from carrying firearms unless you have permission in writing from your local Chief of Police
- Audio recording consent: One party must consent in order to record an electronic, wire, or oral communication
Idaho
-No state regulation of private investigators
- Firearms: No state permit is required to purchase a handgun, either openly or concealed, provided you are at least 21 years old and a state resident.
- Audio recording consent: One party must consent in order to record an electronic, wire or oral communication
Illinois
- Firearms:
- Open carry is not legal in the state. You must have a Firearm Owner’s Identification Card (FOID), and you may be eligible if you meet these requirements:
- Pass a criminal history check
- Have not been a mental patient in the past five years
- Have not been addicted to a substance in the past year
- Are a U.S. citizen and resident of Illinois
- Have not failed a drug test in the past year
- Complete the FOID application online and submit the necessary fees
- You must have a Concealed Carry License to carry a concealed weapon, and you may apply if you:
- Are 21 years or older
- Have a valid FOID
- Pass a criminal history check
- Do not have two or more motor vehicle violations while driving under the influence of a substance in the past five years
- Have not been in drug/alcohol treatment within the past five years
- Complete the Concealed Carry License application online and submit the required fees
- Open carry is not legal in the state. You must have a Firearm Owner’s Identification Card (FOID), and you may be eligible if you meet these requirements:
- Audio recording consent: All parties to an oral, electronic or telephone communication must consent before it can be recorded. However, in public places where a conversation is not expected to be private, recording is permitted.
Indiana
Indiana Private Investigator and Security Guard Licensing Board Laws and Regulations
- Firearms: Open or concealed carry requires a License to Carry a Handgun:
- Submit the application online
- Get fingerprinted and complete local law enforcement agency processing within 90 days
- Your license will be mailed to you if approved
- Audio recording consent: One party must consent in order to record an electronic, wire or oral communication
Iowa
Iowa Department of Public Safety Chapter 80A: Private Investigative Agencies and Security Agents
- Firearms: Open or concealed carry requires a Permit to Carry Weapons, which you may obtain if you:
- Are 21 or older
- Pass a criminal history/background check
- Complete the Iowa Application for Permit to Carry Weapons
- Take it to your local Sheriff’s office and pay the $50 fee
- Audio recording consent: One party must consent in order to record an electronic, wire or oral communication
Kansas
Kansas Private Detective Licensing K.S.A. 75-7b01 et seq.
- Firearms: No license is required for open or concealed carry; however, it is illegal to carry a concealed firearm if you are under age 21 unless you are at your residence or place of business
- Audio recording consent: One party must consent in order to record an electronic, wire, or oral communication
Kentucky
Kentucky Board Licensure for Private Investigators Laws and Regulations Booklet
- Firearms: Firearms need not be registered, and no permit is required for open carry. For concealed carry, you must:
- Be 21 years or older
- Be a U.S. citizen and a Kentucky resident
- Pass a criminal history/background check
- Not be a drug user or addict
- Not have been dishonorably discharged from the armed forces
- Not have been committed as an alcoholic in the past three years
- Not owing child support
- Complete firearms safety training course
- Complete an application form at your local sheriff’s office and pay a $60 fee
- Audio recording consent: One party must consent in order to record an electronic, wire, or oral communication
Louisiana
Louisiana Private Investigators Law (La. R.S. 37:3500-3525)
- Firearms: No permit is required for open carry. For concealed carry, you must:
- Complete the Louisiana Concealed Handgun Permit Application along with the proper fees (listed on the application, which vary in terms of the length of the permit)
- Have continuously resided in Louisiana for the past 15 years, or pay an additional $50 fee
- Meet the state’s firearms training requirements
- Pass a criminal history/background check and fingerprinting
- Submit a medical summary form from a physician if you list any medical condition on your application
- Audio recording consent: One party– Louisiana’s Electronic Surveillance Act does not allow oral or telephone communications to be recorded electronically unless you have the consent of at least one party
Maine
State of Maine Laws Referring to Professional Investigators
- Firearms: No permit is required for open carry. For concealed carry, you must:
- Complete the Concealed Handgun Permit Application if you live in one of these municipalities (issued by State Police) (if you live in another municipality, go to your local sheriff’s office for application)
- Be at least 18 years old
- Pass a criminal history/background/fingerprinting process
- Complete a handgun safety course within five years of application
- Audio recording consent: One party must consent in order to record an electronic, wire, or oral communication
Maryland
Maryland Code Business Occupations and Professions Title 13- Private Detectives
- Firearms:
- Permit to purchase- You must complete the MSP77R Application and Affidavit in order to purchase a registered firearm through the state’s Licensing Portal and pay a $10 fee
- Handgun Qualification License- you must also obtain this license before purchasing a firearm, and apply online. Fingerprinting, a complete criminal history and background check are required, as is completion of a Firearms Safety Training Course within the last three years. Fees are $50, not including fingerprinting
- To carry either open or concealed, you must have a Handgun Wear and Carry Permit. Complete the application if you meet these qualifications:
- You are 18 years or older
- You pass a criminal history check
- You are not a drug addict/alcoholic
- You have a good and substantial reason to wear, carry, or transport a handgun
- You have completed a Maryland State Police-approved firearms training course within the past two years
- Audio recording consent: All parties – Maryland’s Wiretapping and Electronic Surveillance Act says that you must have the consent of all parties to record and use the contents of any oral, wire, or electronic communication
Massachusetts
Massachusetts General Laws Part I Title XX Chapter 147 Section 22
- Firearms:
- Your local police department issues a Firearms License in one of the two forms:
- Firearms Identification Card- allows you to purchase and possess a firearm if:
- You are 18 years or older
- You have completed an approved firearms safety course
- You are a U.S. citizen living in Massachusetts
- License to Carry – allows you to purchase and possess a firearm and to carry it open or concealed if:
- You are 21 years or older
- You completed an approved firearms safety course
- You are a U.S. citizen living in Massachusetts
- Audio recording consent: All parties to a conversation must consent to having it recorded; however, telephone equipment and other normal office intercommunications systems may be used to record conversations without consent
- Firearms Identification Card- allows you to purchase and possess a firearm if:
- Your local police department issues a Firearms License in one of the two forms:
Michigan
Michigan Professional Investigator Licensure Act
- Firearms: Open carry is legal statewide; carrying in a vehicle is considered Concealed Carry and requires a Concealed Pistol License:
- Complete the Concealed Pistol Application
- Complete a pistol safety training course and obtain a certificate
- Pay a $100 application and licensing fee when you file with the county clerk
- Have your fingerprints taken, criminal history and background check will be done
- Audio recording consent: One-party consent is needed if a third party is recording the conversation of others; however, a person involved in a communication has the right to record it without the other’s knowledge
Minnesota
Minnesota Administrative Rules Chapter 7506, Private Detectives and Protective Agents
- Firearms: under state law, all Private Detectives must complete firearms safety training prior to licensure.
- Permit to Purchase- this is required before you may buy a handgun, which you must be at least 21 years old to do:
- Complete the Minnesota Uniform Firearm Application/Receipt Permit to Purchase/Transfer and submit it to your local police chief/county sheriff. You will undergo criminal history background checks and then be issued a one-year Permit to Purchase
- Permit to Carry- this is necessary for both open and concealed carry:
- Complete the Permit to Carry a Pistol Application and submit it to your local police chief/county sheriff.
- You must have completed a handgun safety training course within a year of filing the application
- Permit to Purchase- this is required before you may buy a handgun, which you must be at least 21 years old to do:
- Audio recording consent: One party must consent in order to record an electronic, wire, or oral communication
Mississippi
-No state regulations regarding private investigators
- Firearms: No permit is required for open or concealed carry, nor to purchase a handgun.
- Audio recording consent: One-party- a person may record a communication in which they are involved, or if one of the parties to the communication has given consent
Missouri
Missouri Board of Private Investigator and Private Fire Investigator Examiners Rules & Statutes
- Firearms: No permit is required for open carry. For concealed carry, no permit is required as long as you are at least 19 years old (18 if in the military) and not prohibited by law.
- Audio recording consent: One party, a person, may record a communication in which they are involved, or if one of the parties to the communication has given consent
Montana
Montana Administrative Rules Chapter 24.182 Board of Private Security
- Firearms: No permit is required for open carry. For concealed carry:
- You must be at least 18 years old
- Complete an application at your local sheriff’s office, and pay the fee (usually $60)
- Your permit will be issued within 60 days
- Audio recording consent: All parties- all parties involved in an oral or electronic communication must give consent in order for it to be recorded; except for public officers or employees in which recording of conversations takes place in the performance of official duties, including individuals who speak at public meetings
Nebraska
Nebraska Private Detective Statutes
- Firearms: No permit necessary for open carry. For concealed carry:
- Complete an approved handgun training/safety course
- Complete a Concealed Handgun Permit Application
- Submit proof of training and the application to your local Nebraska State Patrol Headquarters
- Provide proof that you meet the vision requirements (either through showing your Nebraska driver’s license or having a current vision statement completed by a Nebraska ophthalmologist or optometrist
- Provide proof of identification and citizenship
- Provide proof of Nebraska address
- Provide your fingerprints for a complete criminal history/background check
- Pay the fee of $100 (does not include fingerprint fees)
- Audio recording consent: One party- You may record any conversation in which you are a party or any conversation in which you have the consent of one party. You may also record electronic communications that are accessible to the public.
Nevada
- Firearms: No permit necessary for open carry. For concealed carry:
- You must be 21 years or older
- You must pass a criminal history check
- You must have passed a handgun safety course
- Contact your local sheriff’s office for a Nevada Concealed Firearm Permit application (If you live in Clark County, this application is only issued by the Las Vegas Metro Police Department)
- Submit completed application and set of ten-print fingerprint cards, color photo of yourself, and fees to the sheriff’s office/police department (about $100)
- Audio recording consent: Mixed consent – you cannot record a private oral conversation without the consent of at least one party; you cannot record a telephone conversation without the consent of all of the parties involved
New Hampshire
New Hampshire Department of Safety Administrative Rules Chapter Saf-C 2200
- Firearms: No permit required for open or concealed carry.
- Audio recording consent: All parties- You must have the consent of all parties to an electronic or in-person conversation in order to record it
New Jersey
New Jersey State Police Private Detective Rules & Regulations
- Firearms: No permit is required to purchase a handgun. For both open and concealed carry, you need a Permit to Carry, which you qualify for by:
- Filing the Application for Permit to Carry a Handgun, in triplicate, to the Chief of Police of the municipality in which you live, or to the Superintendent of State Police
- Include a letter of need to why you need to carry a firearm (your employer may provide this letter)
- Audio recording consent: One-party consent is needed in order to record an in-person or telephone conversation, unless the recording is being done as part of a criminal act. It is legal to record electronic communications that are accessible to the public.
New Mexico
New Mexico Administrative Code Title 16 Chapter 48- Private Law Enforcement Practitioners
- Firearms: No permit is required for open carry. For concealed carry:
- Get fingerprinting done electronically through 3M Cogent, pay $44 to them and $56 to the New Mexico Department of Public Safety when you submit them
- Complete approved firearms training
- Complete the Concealed Handgun License Application, and include:
- Fingerprint receipt
- two release forms
- copy of your birth certificate
- copy of firearms training certificate
- copy of your New Mexico driver’s license
- payment of $100
- Audio recording consent: One-party consent is needed in order to record a conversation or communication
New York
- Firearms: Open and concealed carry licenses are regulated by 59 licensing jurisdictions statewide. 55 of these jurisdictions issue pistol licenses through the courts, while the other four issue them through the sheriff’s office or police commissioner. Check with your local jurisdiction for its policies and procedures.
- Audio recording consent: One-party consent is required in order to record an oral or electronic communication.
North Carolina
- Firearms: No permit required for open carry. For concealed carry:
- Complete an application at your local sheriff’s office, and pay a fee of $80
- You will have two sets of fingerprints taken at the sheriff’s office
- Completed a handgun safety course and provide certificate of completion
- Sign a release at the sheriff’s office disclosing any mental health issue
- Audio recording consent- One-party consent is required in order to record an oral or electronic communication.
North Dakota
State of North Dakota Private Investigation and Security Board Title 93: Administrative Rules
- Firearms: You need a Concealed Weapon License to openly (or concealed) carry a loaded handgun. Qualifications include:
- Being age 21 or older
- Being a U.S. citizen
- Passing a criminal history/background check
- Being a North Dakota resident
- Passing an open-book test on the Concealed Weapon License Manual
- Submitting the online application
- Audio recording consent: One-party consent is needed in order to record an in-person or telephone conversation, unless the recording is being done as part of a criminal act.
Ohio
- Firearms: No permit required for open carry. To open carry in a vehicle or to conceal carry, a Concealed Carry permit is necessary:
- You must be at least 21 years old, a U.S. citizen, and an Ohio resident for the past five years
- You must pass a criminal history check
- Complete weapons training (8 hours with at least 2 hours in-person training at a range and live-fire training)
- Complete the Application for License to Carry a Concealed Handgun and submit it in person with $67 to your local sheriff’s office
- Audio recording consent: One-party consent is needed in order to record an in-person or telephone conversation, unless the recording is being done as part of a criminal act.
Oklahoma
Oklahoma Security Guard and Private Investigator Act
- Firearms: You need a Carry Permit for both open and concealed carry:
- You must be a U.S. citizen and a resident of Oklahoma
- You must be at least 21 years old
- You must complete a firearms safety/training course
- Apply online through the Oklahoma State Bureau of Investigation Self-Defense Act Licensing System
- Audio recording consent: One party – Oklahoma’s Security of Communications Act says that a person must have consent from one party of an oral or electronic communication in order to record it, unless the person is doing so as part of a criminal act.
Oregon
- Firearms: Open and concealed carry permits are issued through the local sheriff’s office. Most require that you:
- Complete a handgun safety training course
- Are a U.S. citizen and an Oregon resident
- Are you a resident of the county in which you are applying for the permit/license
- Are at least 21 years old
- Pass a criminal history background check
- Pay all necessary fees
- Audio recording consent: Mixed consent – One party consent is needed to record an electronic communication; all parties consent is needed to record an in-person conversation.
Pennsylvania
Pennsylvania Private Detective Act of 1953
- Firearms:
- No permit is required for open carry EXCEPT in a vehicle and in the city of Philadelphia, where you need a Philadelphia License to Carry Firearms:
- You must be 21 or older
- You must be a resident of Philadelphia County
- You must have two professional references (not family members)
- You must have a valid PA driver’s license
- You must pass fingerprinting and a criminal history/background check
- You must pay all applicable fees
- For concealed carry statewide, and for carry in a vehicle:
- Go to your local Sheriff’s office with your PA driver’s license, names of two references and ask for an application
- You may need to prove residency in the county for the past 90 days
- You must pay all applicable fees
- Audio recording consent: All parties – You must have the consent of all parties to a communication, either electronic or in-person, in order to legally record it.
- No permit is required for open carry EXCEPT in a vehicle and in the city of Philadelphia, where you need a Philadelphia License to Carry Firearms:
Rhode Island
Rhode Island Private Detective Act
- Firearms: A permit/license is required for open and concealed carry.
- Pick up an application at your local sheriff’s office, complete it, and have it notarized
- Complete qualification as a certified weapons instructor, including a certificate
- Submit two photos of yourself and two forms of identification
- Complete FBI Fingerprinting
- Include a letter from your employer explaining why you need the permit
- Pay all fees ($40 plus fingerprinting, except the City of Providence, which is $250)
- Audio recording consent: One party – you must have consent from one party of an oral or electronic communication in order to record it, unless you are doing so as part of a criminal act. You may record any electronic/in-person communication that is common knowledge or public information, however.
South Carolina
South Carolina Code of Laws Title 40 Chapter 18 – Private Security and Investigation Agencies
- Firearms: You must have a Concealed Weapons Permit for open or concealed carry:
- You must be a U.S. citizen and an S.C. resident
- You must complete mandatory firearms training and include the South Carolina Concealed Weapons Permit Instructor/Student Checklist
- You must pass a criminal history check
- Complete the South Carolina Concealed Weapon Permit Application
- Include a $50 fee
- Audio recording consent: One party – One-party consent is required in order to record an oral or electronic communication.
South Dakota
– No state regulations regarding private investigators
- Firearms: No permit required for open carry. There are three types of concealed permits:
- Regular Permit- allows concealed carry in the state and 30 other states. Requirements:
- You are at least 18 years old
- You pass a criminal history check and background investigation
- You are a citizen of the U.S. and a resident of S.D. and of the county in which you are applying for a permit
- You pay a $10 application fee
- Gold Card Permit- allows regular permit benefits plus recognition for concealed carry in one other state and purchase exemption upon approval from ATF . Requirements:
- Same as Regular
- Complete FBI fingerprinting background check
- Pay $43.75 for fingerprinting and $70 for the application
- Undergo periodic background checks for continued eligibility
- Enhanced Permit allows regular and gold card benefits, plus recognition for concealed carry in six other states. Requirements:
- Same as Regular
- Complete a qualified handgun course
- Complete FBI fingerprinting background check
- Pay a $100 application fee and a $43.75 fingerprinting fee
- Undergo periodic background checks for continued eligibility
- Audio recording consent: One-party consent is required in order to record an oral or electronic communication.
- Regular Permit- allows concealed carry in the state and 30 other states. Requirements:
Tennessee
- Firearms: You need a Handgun Carry Permit for both open and concealed carry:
- You are a U.S. citizen and a TN resident
- You are at least 21 years old
- You pass a criminal history check
- You are not a substance abuser/user
- You are not mentally defective
- Complete a handgun safety course in the year prior to application
- Pick up and process the application at any Driver Services Center location
- Pay fees of $100 for 8 year permit, $300 for lifetime permit
- Audio recording consent: One party- you must have consent from one party of an oral or electronic communication in order to record it, unless you are doing so as part of a criminal act. You may record any electronic/in-person communication that is common knowledge or public information, however.
Texas
State of Texas Private Security Statutes & Rules
- Firearms: You need a License To Carry a Handgun for both open and concealed carry:
- You must be a U.S. citizen and a Texas resident
- You must be at least 21
- You must pass a criminal history check, including a child support check
- You must not suffer from a psychiatric disorder
- You must not have a substance abuse/dependence problem
- You must pass the official LTC training course
- Complete the LTC Application Form and submit it with the necessary fees
- Audio recording consent: One party – you must have consent from one party of an oral or electronic communication in order to record it, unless you are doing so as part of a criminal act. You may record any electronic/in-person communication that is common knowledge or public information, however.
Utah
Utah Code Chapter 9: Private Investigator Regulation Act
- Firearms: No permit required for open carry. For a concealed firearms permit:
- You must be 21 or older
- You must be a U.S. citizen and a UT resident
- You must pass a criminal history and background check, with fingerprinting
- You must complete a Weapon Familiarity Certification course
- You must submit the Application for Concealed Firearms Permit and the fee of $37 (not including the fingerprinting fee)
- Audio recording consent: One party- you must have consent from one party of an oral or electronic communication in order to record it, unless you are doing so as part of a criminal act. You may record any electronic/in-person communication that is common knowledge or public information, however.
- Firearms: No permit required for open carry. For a concealed firearms permit:
Vermont
Vermont Statutes Online Title 26 Chapter 59: Private Investigative and Security Services
- Firearms: No permit required for open or concealed carry.
- Audio recording consent: Vermont has no statute or case law that defines the legality of audio recording consent
Virginia
Code of Virginia Title 9.1 Department 1 Article 4 Private Security Services Businesses
- Firearms: No permit required for open or concealed carry.
- Audio recording consent: One party- you may record a conversation (electronic or oral) to which you are a party or in which you have consent from one party.
Washington
Washington State Legislature Title 18 Chapter 18.165 RCW Private Investigators
- Firearms: No permit is required for open carry. For concealed carry (which also applies to open carry of a loaded handgun in a vehicle):
- Go to your local law enforcement agency for an application/procedure
- You must be over 18 years old (21 if carrying a concealed weapon)
- You must be a U.S. citizen, a WA resident, and a resident of the local area in which you apply
- You will be fingerprinted and undergo a criminal history/background check
- Fees are $48 (not including fingerprinting)
- Audio recording consent: All parties – You must have the consent of all parties to an oral or electronic communication in order to legally record it.
West Virginia
West Virginia Code Chapter 30 Article 18: Private Investigative and Security Services
- Firearms: No permit required for open or concealed carry.
- Audio recording consent: One party- you must have consent from one party of an oral or electronic communication in order to record it, unless you are doing so as part of a criminal act.
Wisconsin
Wisconsin State Legislature Statute 440.26 Private Detectives, Investigators and Security Personnel
- Firearms: No permit required for open carry. For concealed carry (which also applies to open carry in a vehicle):
- You must be at least 21 years old
- You must pass a criminal history check
- You must be a U.S. citizen and a WI resident
- You must pass firearms training
- Complete Concealed Weapon Application
- Audio recording consent: One party – you must have consent from one party of an oral or electronic communication in order to record it, unless you are doing so as part of a criminal act. Evidence that is obtained by recording a communication is not admissible in civil cases, except if the party has been informed that the conversation is being recorded and may be used in court.
Wyoming
-No state regulations regarding private investigators, but locally, must apply for Business License as Private Detective in City of Cheyenne
- Firearms: No permit required for open carry. All legal residents of Wyoming may carry a concealed weapon without a permit.
- Audio recording consent: One party – you must have consent from one party of an oral or electronic communication in order to record it, unless you are doing so as part of a criminal act.
Frequently Asked Questions
Can private investigators carry guns?
Yes, but only under the same rules that apply to any private citizen in their state. PIs don’t receive special firearms authority with their license. Some states require additional permits for armed PI work specifically; most treat armed PIs identically to any other licensed carrier. The state-by-state section above covers what each state requires for open carry and concealed carry.
Can a private investigator record my conversations?
It depends on the state. In one-party consent states, a PI who is a participant in a conversation can legally record it without telling you. In all-party consent states, everyone in the conversation must know it’s being recorded. No PI can legally wiretap a phone line or intercept digital communications without authorization — those are federal crimes regardless of state law.
Can private investigators trespass on private property?
No. PIs have no special rights to enter private property without permission. Trespassing laws apply to them exactly as they apply to anyone else. Even if a property appears unoccupied or a door is unlocked, entering without authorization is a criminal offense. All lawful surveillance must be conducted from public property or with the owner’s consent.
Can a PI make an arrest?
Not as a PI specifically — but like any private citizen, a PI may have the right to make a citizen’s arrest in states where that’s permitted, typically when they personally witness a violent felony or misdemeanor property crime in progress. This is rarely advisable. Getting it wrong creates false imprisonment liability, and law enforcement is far better equipped to handle the situation safely.
Do private investigators need a license?
In most states, yes. The majority of states require PIs to hold a license issued by a state regulatory board, which typically involves a background check, experience requirements, a written exam, and sometimes a surety bond. A handful of states have no statewide licensing requirement, though local jurisdictions within those states may have their own rules. See the full private investigator license requirements by state for the exact requirements where you’ll be working.
Can a PI access my bank records or phone records?
Not without your consent or a court order. Federal law — including the Gramm-Leach-Bliley Act for financial records and the Stored Communications Act for digital communications — restricts access to these records. The practice of pretexting, where an investigator contacts a service provider while impersonating the account holder to obtain records, is a federal crime.
Key Takeaways
- PIs operate under civilian law. No special powers, no immunity from the laws that apply to everyone else
- Public surveillance is generally lawful. Following, photographing, and documenting subjects in public spaces is legal when conducted within traffic and anti-harassment rules
- Recording laws vary significantly by state. One-party consent states allow a participant to record without disclosure; all-party states require everyone’s knowledge
- Wiretapping and pretexting are federal crimes. Intercepting communications or impersonating account holders to obtain records carries serious criminal penalties
- GPS tracking generally requires authorization. Placing a tracker on a vehicle you don’t own requires the owner’s consent in most states
- Firearms rules follow state law. PIs carry under the same rules as any licensed citizen; some states have additional requirements for armed investigative work
- The state-by-state guide above links directly to each state’s licensing authority for audio recording consent and firearms requirements
Ready to start your PI career? Browse accredited programs by state and find the education and training that meets your state’s licensing requirements.