Recently we've been talking a lot about
hand-held police radar guns, police officers and even volunteers. But today I've learned that there is also a "meth gun", which looks like a standard
radar gun. The only difference is that a meth gun is made to help police find traces of dope. All people see it as an investigative aid, mass-produced devices will test not only for meth, but also for cocaine, marijuana, heroin and even peroxide-based explosives.