City of Seattle v. Williams

— The question presented by this appeal is whether the City of Seattle may enforce an ordinance that defines the offense of driving while intoxicated in a manner that is not in uniformity with a state statute defining the offense of driving under the influence of intoxicating liquor. We hold that it may not, because to allow it to do so would contravene RCW 46.08.020, a statute which requires traffic laws to be "applicable and uniform throughout this state,” as well as RCW 46.08.030, a statute which requires traffic laws to be "applicable and uniform upon all persons operating vehicles upon…