The House has approved a measure prosecutors and crime lab scientists say is needed because of concerns that a provision in Washington's new legal marijuana law jeopardizes their ability to go after any pot crimes at all.
The measure, passed on a 95-1 vote Friday, defines marijuana as part of the cannabis plant containing more than 0.3 percent of delta-9 THC and THC acid. Supporters said the change was a technical fix needed to help police and prosecutors distinguish marijuana from industrial hemp, which is grown for its fiber.