The Washington State House passed a bill to make it illegal to manufacture and sell alcohol mixed with tetrahydrocannabinol or THC, the main psychoactive compound in marijuana. When combined with alcohol, 17th District Representative Kevin Waters says the effects of impairment can be deadly, and the Stevenson Republican wants to get ahead of the issue before these types of products become more prevalent. In Washington, both substances are independently legal, but regulated. House Bill 1772 would prohibit the manufacture, importation and sale of products that combine THC and liquor. The bill passed 94 to 3 and now heads to the Senate.