A law enforcement officer may lawfully stop a vehicle and conduct a brief investigation when he observes a traffic violation. Strauss v. Texas, 121 S.W.3d 486, 490 (Tex.App. – Amarillo 2003, pet. ref’d.). In general, the decision to stop a vehicle is reasonable when the officer has probable cause to believe that a traffic violation has occurred. Walter v. State, 28 S.W.3d 538, 542 (Tex.Crim.App. 2000).
During a routine traffic stop, the officer may require the driver to identify himself and produce a valid driver’s license and proof of liability insurance. Strauss at 491. The officer may direct the driver to step out of the vehicle, Estrada v. State, 30 S.W.3d 599, 603 (Tex.App. – Austin 2000, pet. ref’d.), detain the driver to check for outstanding warrants, Walter at 542, inquire about the registration of the vehicle, Sieffert V. Texas, 290 S.W.3d 478, 483 (Tex.App. – Amarillo 2009), and ask about the destination and the purpose of the trip. Haas v. State, 172 S.W.3d 42, 50 (Tex.App. – Waco 2005, pet. ref’d.).
The officer may also question any passenger in the vehicle. Duff v. State, 546 S.W.2d 283, 286 (Tex.Crim.App. 1977).
Once the purpose of the traffic stop has been completed, the officer may then ask the driver if he possesses any illegal contraband and may also ask for voluntary consent to search the vehicle. Strauss at 491. If consent to search is not given, the officer may no longer detain the vehicle or its occupants unless reasonable suspicion of some other criminal activity exists. Sieffert at 484.