Police from a dozen agencies will use handheld devices to test drivers’ saliva for use of several drugs under a pilot program in five Michigan counties.

Roadside drug tests to check for marijuana, cocaine, opiates and moreBy Brad Devereauxbdeverea@mlive.comPolice from a dozen agencies will use handheld devices to test drivers' saliva for use of several drugs under a pilot program in five Michigan counties.The Michigan State Police announced Thursday, Nov. 2, it will carry out a one-year roadside drug testing pilot …