American Interlock is Michigan's leading provider of ignition interlock systems. Founder and owner, Michael S. Diamond, has been practicing criminal law since 1993. Our corporate philosophy is based on Mr. Diamond's years of experience handing driver license restoration cases as well as his deep understanding of the state's DUI laws. American Interlock fulfills their goal of treating each and every customer with dignity and respect while working with them towards successful completion of the program. We know how important the privilege of driving is to our customers. We are here to assist them while keeping them compliant with the requirements set forth by the Court or State.