A new California law, known as AB1013, will soon encourage bars and nightclubs in the state to sell kits that would detect the presence of so-called date-rape drugs. Drugs such as Rohypnol, ketamine, or GHB — commonly referred to as "roofies" — can be surreptitiously slipped into a beverage, causing the person who consumes it to become disoriented or even black out completely. However, certain "strips, stickers, straws, and other devices" can detect the presence of such drugs, AB1013 indicated, if placed in a substance relatively quickly. Assemblymember Josh Lowenthal, D-Long Beach, introduced AB1013 last year, and it was signed...