It's a program aimed to combat drinking and driving in South Dakota. But is it working? The ignition interlock devices were added to the 24/7 Sobriety Program in October.
More than 100 people have used the system and have passed the tests with a rate of 99.5 percent. The devices are installed in the offenders' car, and before the car can start they must exhale into the device.
In Pennington County the device works but hasn't caught on yet.
"We have one out currently in Pennington County. It has been working very well for the gentleman that has it. One of the things that I think may be a turnoff for is people are trying to get away from having to report to the facility twice a day," said Tessia Johnston, 24/ Program Manager at Pennington County Sheriff's Office.
The pilot project for the 24/7 Sobriety Program started in 2005. Besides the ignition interlock, it includes the preliminary breath test, urinalysis, drug patch, and an ankle bracelet.