Its a sad fact of life that the criminal justice system is not set up to actually help people, just keep them locked up for period of time. Another fact about addiction is your daughter is not going to get better until she chooses sobriety for herself, and makes the changes in her life that will require. I do not think you should put your hopes in the court system, but instead should start seeking out other resources to help with your daughters problem.
Please check out the friends and family forum to connect with others in your situation, having a loved one struggle with addiction.
Best of wishes.