This is the first installment of “Locked Out.” 25 Investigates spent 6 months looking into the RMV’s ignition interlock program designed to keep drunk drivers from reoffending. Richard Carvalho, 47, ...

The 61st District Court in Grand Rapids was one of five courts included in a study evaluating the effectiveness of ignition interlock devices in reducing drunken driving rates by chronic offenders.

Motorists who have a blood alcohol content of 0.15%, drive dangerously while under the influence or are convicted of two or more offences in five years are forced to install the device, which prevents ...