In Illinois, you will be required to get an evaluation from a Licensed Treatment Provider. In Cook County, you will be required to go to Central States Institute. In DuPage County, you will be required to complete the evaluation at the courthouse with their staff. For the remaining counties in Illinois, you can go anywhere. In order to complete an evaluation, you will need the Officer's Sworn Report / Summary Suspension Notice. This piece of paper is white and part of a tripl