The criminal charges against you for the automobile accident that you were involved in are quite serious charges in which a felony had been asserted against you, The best thing to do is to immediately consult with and retain a criminal defense attorney who is also experienced in personal injury matters (civil action) in that most likely there will be a civil lawsuit against you later on stemming from the accident.You will need to have your criminal defense attorney try and negotiate the criminal charges against you to a lesser charge or charges where any jail time and fines/penalties would be reduced.If you had automotive insurance at the time of the accident, if you have not advised your insurance carrier of the accident, you need to do so immediately.Good luck.