1)Immediately write down the events preceding, during, and following your arrest. Note what you ate and when, whether you took any medication, and as exactly as possible, how much you had to drink and when as exactly as possible. Who were you with and where did you go?
2)Next, write down everything that police officers said to you and any reply you made. Replay the conversations and document the exact words. Note whether anyone else was present during these conversations. Record their names and contact information, and ask them to write down everything they remember.
3)Retrieve your car and if it contains anything noteworthy like alcoholic containers, have a friend or relative photograph those items and note whether any liquids remain in them. If your license has been suspended, have someone else drive the car home for you.
4)Contact the DMV within 10 days of your arrest or you will lose the right to appeal the suspension of your driving privileges. If you hire an attorney within 10 days, he or she will contact the DMV for a hearing.
5)Stay out of trouble while your case is pending. New infractions will make matters worse.
6)Hire an experienced and qualified DUI attorney to represent you. The next answer offers some suggestions for this task.