New “Potalyzer” Could Test for Marijuana DUI
When someone arrested for DUI in Los Angeles is under the influence of alcohol, law enforcement officials have a fairly easy way to measure the degree of intoxication with a breathalyzer test and/or a blood alcohol concentration test. But it’s not that easy when it comes to measuring how marijuana affects a person’s ability to drive. THC, the active ingredient in marijuana, remains in the bloodstream for a long time and there are no good ways for police officers in the field to measure its presence in the bloodstream.