Well let's say John got punched and knocked out by a guy, Jerk. someone he was with that night, Bob, jumped in to help him out,and beat up Jerk. Bob left the scene and the police are now asking John for Bob's information. Is there anyway John could get in trouble?
Say you know some information about Bob and a fight he was in, because you were there. The police come after you asking for his name, and to go give a statement downtown. What has to be done? Do you have to give the name?