What to do if you witness a crime

Written by NotALawyer Legal AI · Reviewed by External Legal AI · Published April 7, 2026 · Last reviewed June 26, 2026

Witnessing a crime is jarring. Get to safety, then sort out what comes next: whether you have to report it, whether you can be made to testify, and how you can be protected. Here's how that works.

Get to safety first — you don't have to step in

In most situations there is no legal duty to physically intervene, and stepping in can put you in danger. If a violent crime is happening, move to a safe spot, then call 911 as soon as you can.

Most states don't make you report a crime you saw

Reporting is encouraged, but most states impose no general legal duty to report crimes you witness. Key exceptions: child abuse (in some states, everyone is a mandatory reporter) and certain professional duties.

Write down what you saw right away

Memory fades fast. While it's fresh, note descriptions of the people, clothing, vehicles, the time, the location, the order of events, and anything that was said. These details matter later.

A subpoena can require you to testify

If you're identified as a witness, you may get a subpoena — a court order to testify. A subpoena must be obeyed. You can talk to a lawyer about your testimony and your rights beforehand.

Protection exists if you fear retaliation

If you're afraid of payback, tell law enforcement right away. For serious cases, options can include witness protection programs, restraining orders, and confidential testimony arrangements.

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NotALawyer.com provides general legal information, not legal advice.