My 20 year old son was sentenced for retail theft in pa misdeamor 1. Sentence probation 3 years. He was arrested for DUI in April 2007. DUI case 6 months probation and fine. He has been in County Prison with a detainer on his probation violation. I have been in contact with lawyers and states probation officier has not returned calls. We now have a hearing on 12/13/07. What should I expect at this hearing?