The legalization of marijuana in Washington has been terrific for the state’s coffers. According to the Department of Revenue, marijuana retailers totaled $1.2 billion in sales during fiscal year 2017. That’s about $4.8 million a day. The state’s share of that, in taxes, was about $227 million for the fiscal year.
One of the downsides of legal pot is that law enforcement officers are having a hard time proving drivers are impaired by marijuana. They’re don’t have one simple, accurate method for testing people they suspect are high on pot, as they do for drunk drivers.
For several years, Washington State University Professor Emeritus Nick Lovrich has been part of a team trying to develop a tool to measure marijuana intoxication.