Sacramento Police Corporal Luke Moseley places a sample of saliva taken from another officer pretending to be a driver suspected to be under the influence of drugs, during a demonstration of drug testing device Wednesday, May 10, 2017,in Sacramento, Calif. Three of California's largest counties are testing a device that can detect the presence of drugs in saliva within five minutes. Some officers and lawmakers want the devices used statewide after voters passed Proposition 64 in November, legalizing the recreational use of marijuana. (AP Photo/Rich Pedroncelli)
