Yes, because you care for your friend. If your friend gets away with it, what will he try to get away with next. He may not want to be your friend anymore but at least you were able to help him this time. Can you convince your friend to turn himself in??
I would turn him in if this impacted or made a great change in something. For example, did someone get hurt? Did something get destroyed? If none of that happened, then I would not report him to anyone, but you might want to consider if you still want to be friends with him or not. This person doesn't sound like a very good friend if he's making these choices that make you question whether or not to get the police involved. Good luck! ~~~MaRiA_bAbY_lOvE~~~
it depends - But you are Guilty and can be arrested quicker than your friend for their crime - you are Guilty of after the fact - it is also your duties to report and or stop crime and you can also be arrested for not doing so