Some states even prohibit riding horses while drunk or high.

Thousands of cases have piled up in Washington as they await state testing to confirm if a driver was under the influence of drugs or alcohol. Prosecutors say this is leaving people on the road ...

TACOMA, Wash. — A surge in impaired driving arrests in Pierce County this weekend is putting into focus the urgency of a brand-new Washington state law designed to speed up DUI cases and toxicology ...