People v. Haywood 

Police officer saw Defendant driving with his turn signal activated, but driving past three opportunities to turn, and stopped Defendant based on belief that use of turn signal was a traffic violation. Defendant, whose license was suspended, was arrested and heroin was found on his person. Court properly granted motion to quash arrest and suppress evidence, as no violation of traffic laws was committed in use of turn signal, and officer's mistake of law did not justify the stop at its inception. Vehicle Code statutes which prohibit flashing lights except as authorized govern a vehicle's equipment, including that equipment must be operable, and not the driver's conduct. (ZENOFF and SCHOSTOK, concurring.)