Hey there Jaja!
So, when considering about dealing with juvenile kids would be the following:
Factor #1: One factor that I would really consider is making sure that YOU know everything about this story of this kid that he has done bad. Make sure that YOU get every detail understood, so that when you do "put him on (probation)" so to speak, you would want to make sure that he is on this for a reason, and not just because you didn't understand everything.
Factor #2: Another thin that I would really consider is his/her past life. Perhaps if he has ever been (abused) or had a tough life in his/hers hands, this could be why they're doing these kind of things.
If you were to know that this kid/teen has been dealing with this, I would consider taking him to a special health clinic to help him with the stuff the he would be dealing with so that would help him NOT to make these choices again.
I hope this helps you Jaja. You have a great day!