Published October 6, 2026
Last reviewed October 6, 2026.
It depends on the type of encounter
1. Consensual encounter. An officer approaches and asks questions, but you are free to leave. You generally do not have to answer questions or show ID. You can ask, "Am I being detained, or am I free to go?" If you are free to go, you can leave.
2. Detention (a "Terry stop"). An officer has reasonable suspicion that you are involved in a crime and holds you briefly to investigate. Whether you must identify yourself now depends on your state.
3. Arrest. You will be identified through booking. You still have the right to remain silent about everything else.
Stop and identify laws
About half of the states have "stop and identify" laws. In Hiibel v. Sixth Judicial District Court of Nevada (2004), the U.S. Supreme Court held that a state can require a person who is lawfully detained on reasonable suspicion to state their name. These laws usually require your name, not a physical ID card, and they apply only during a lawful detention, not a consensual encounter.
Check your state's rules on your state's CopFax page before you need them.
Traffic stops
- Drivers must show a driver's license, registration and proof of insurance when lawfully stopped.
- Passengers are in a grayer area. Many states do not require passengers to identify themselves unless they are suspected of a crime, but some do. Know your state's rule.
What to say
- Stay calm and keep your hands visible.
- Ask: "Am I being detained?"
- If detained in a stop and identify state, give your name. You can decline to answer other questions: "I am going to remain silent."
- Do not give a false name. That is a crime in many states.
CopFax is not a law firm and this is not legal advice. Laws change and vary by state.