Beginning in the late 1960s, there are many attempts to develop riot control technologies and use-of-force alternatives to the police service revolver and baton. Tried and abandoned or not widely adopted are wooden, rubber and plastic bullets; dart guns adapted from the veterinarian's tranquilizer gun that inject a drug when fired; an electrified water jet; a baton that carries a 6,000-volt shock; chemicals that make streets extremely slippery; strobe lights that cause giddiness, fainting and nausea; and the stun gun that, when pressed to the body, delivers a 50,000-volt shock that disables its victim for several minutes. One of the few technologies to successfully emerge is the TASER which shoots two wire-controlled, tiny darts into its victim or the victim's clothes and delivers a 50,000-volt shock. By 1985, police in every state have used the TASER, but its popularity is restricted owing to its limited range and limitations in affecting the drug- and alcohol-intoxicated. Some agencies adopt bean bag rounds for crowd control purposes.