Does a police officer need a reason to stop a vehicle? A friend of mine was with his wife the other night, when a police officer activated his over-head lights and stopped their vehicle. When he approached the car, the officer stated " He thought it was his friend" and stopped them by mistake. I realize the officer was probably going to mess with someone he knew and it backfired. Is this a violation of their civil rights? They now want to file a complaint, but they do not know if it was wrong to begin with. Any one ever have this happen or know of it happening? Is there anything they can do to complain?