traffic stops; unmarked vehicles; prohibition

SB 1174 prohibits Arizona peace officers from stopping or detaining drivers while operating an unmarked vehicle during traffic enforcement. The bill amends Arizona law to state that officers may not conduct traffic stops in vehicles lacking visible law enforcement markings, defined as "not appropriately marked to show that it is an official law enforcement vehicle." This directly affects all law enforcement officers conducting traffic stops in Arizona. The law creates a clear requirement for vehicles used in traffic enforcement to display appropriate official markings.