Your son must understand the seriousness of the nature of teen age driving. He does need to have a talk with the police officer. I am sure that the officer can tell him all sorts of stories and show him some gruesome pictures of accidents. He does need to attend the funeral of one of the kids. He needs the scared straight approach to be used. Teenagers do not rationalize that awful consequences can happen due to their actions. Also, hide the car keys so that he does not have access to them.
I hope that this has helped. Please ACCEPT. If you have any more questions, request Erica.13 in your question. Have a great day!!!