What Private Investigators Can and Cannot Do Legally

What Private Investigators Can and Cannot Do Legally

One of the most common questions I get from families is: what can a private investigator actually do? People have seen too many movies. They think PIs operate in some gray area between law enforcement and vigilante. The reality is much more straightforward — and more useful than most people realize.

Understanding what a PI can and cannot do legally will help you make better decisions when hiring one and set realistic expectations about the investigation.

What a Licensed PI CAN Do

Surveillance. We can conduct surveillance in public spaces — watching, photographing, and video recording people in locations where there is no reasonable expectation of privacy. This includes streets, parking lots, restaurants, parks, and other public areas. Surveillance is one of the most effective investigative tools we have.

Database Searches. Licensed PIs have access to commercial investigative databases that the general public does not. These databases aggregate public records, financial information, phone records, address histories, vehicle registrations, social media profiles, and more. A comprehensive database search can reveal connections, locations, and patterns that are invisible to a standard internet search.

Interviews and Canvassing. We can talk to anyone willing to talk to us. We identify ourselves as private investigators and conduct voluntary interviews. People are often more willing to speak with a PI than with law enforcement — there is less fear of legal consequences, and the family connection creates empathy.

Skip Tracing. Locating people through public records, database analysis, social media investigation, and field work. This is core PI work and particularly relevant to missing persons cases.

Background Checks. Comprehensive background investigations using both public records and proprietary databases.

Social Media Analysis. Reviewing, documenting, and analyzing publicly available social media content. We can also use specialized tools to recover deleted posts and identify hidden accounts.

Photography and Video. In public spaces, we can photograph and record video without consent (subject to state-specific wiretapping laws regarding audio).

GPS Tracking (Limited). This is heavily state-dependent. In some states, a vehicle owner or authorized party can request GPS tracking of their own vehicle. In other states, GPS tracking requires a court order regardless. We follow the law of whatever state we are operating in.

What a PI CANNOT Do Legally

Wiretapping or Phone Tapping. We cannot intercept phone calls, text messages, or electronic communications. This is a federal crime under the Wiretap Act, regardless of the circumstances.

Trespassing. We cannot enter private property without permission. No exceptions. If we need access to private property, we seek permission from the property owner or work with law enforcement to obtain a warrant.

Impersonating Law Enforcement. We cannot represent ourselves as police officers, federal agents, or any other law enforcement official. This is a felony in every state.

Hacking. We cannot access someone's email, phone, computer, or social media accounts without authorization. Even if a family member asks us to hack their missing loved one's account, we cannot do it.

Making Arrests. PIs do not have arrest powers. While citizen's arrest laws exist in some states, we do not practice them. If we identify criminal activity during an investigation, we report it to law enforcement.

Subpoenaing Records. We cannot issue subpoenas. Only courts and attorneys can compel the production of records. However, we routinely work with attorneys to facilitate subpoenas for phone records, financial records, and other critical evidence.

State-by-State Variations

PI law varies significantly by state. What is permissible in California may be illegal in Tennessee. This is one of many reasons why you should hire a PI who is licensed in the state where they will be operating. At SEARCH Investigations, we maintain licenses in six states to ensure we operate legally everywhere we work.

The Bottom Line

A licensed PI operates within the law — always. The tools available to us within that legal framework are extensive and effective. We fill a critical gap between what families can do on their own and what law enforcement is able to prioritize.

Questions about what we can do for your case? Call SEARCH Investigations: (877) 619-9890. Free consultation, 24/7.