Among the questions I am most frequently asked is: What is the proper charge when a person violates an alcohol concentration restriction on his or her driver’s license? As soon as I answer that question, the next one comes in: Is the answer the same if the person violates an ignition interlock restriction? When I say that it is not, additional questions follow. If you too are unsure about the rules for charging and processing a person who is suspected of violating one of these types of license restrictions, I’m hoping the rest of this post will clear things up.