Does Missouri Have an Ignition Interlock Device Law for Drunk Driving Convictions?
Yes, for any second offense or subsequent DWI conviction, you will be required to have an ignition interlock device installed in your car in order to get your license back. The time it must be installed in your vehicle varies, but it will be at least on month. Also, new laws have been passed to make enforcement tougher – You have to have proof that the device is installed.