MD juvenile criminal code, punishment for shoplifting

Maryland does not punish juveniles. Or at least that's the theory of the law. Maryland rehabilitates juveniles found to be involved in delinquent conduct. So the answer to this question is that if you were charged in juvenile court and found involved, the judge could order you into dentention until age 21 (the maximum under Maryland law) or could find that you are not in need of any services and dismiss the delinquency petition. Generally though, a young person in your position in Prince George's County would receive probation, perhaps community service and be ordered to maintain good school attendance, etc.