Indiana drunk driving penalties can be very strict for dui offenders, especially for the repeat offenders. In this state, you cannot refuse to submit to a chemical test when a traffic officer stops you and ask for the same. Refusal to take the test will result in the immediate suspension of your diving license for one year. It is very important for you to keep in mind that like many other states Indiana also treat refusal to chemical test as a more serious offence than an actual dui conviction. The penalties for refusal will be applicable even if the charges against you get dismissed in the court.