As a lawyer, I don't know that middle school exposure in a law/justice program would be that helpful. I suspect it might also be geared towards probation, corrections and law enforcement officers.

If he is interested in a STEM field versus being a lawyer, I would nudge him away from law and towards anything else. The post graduation employment rates are pretty bad and there isn't an end in sight. Those rates also don't usually take into account freshly minted lawyers that are underemployed.