Hi Kat,

These kids eventually do themselves in and give themselves away.  All they need is a little rope to (figuratively) hang themselves with.  Your son is the type that will eventually really anger the teachers that he fooled.  They think they have seen every kind of problem, but when THEY get fooled and then realize it, they get really irate at the kid.  Just give them time.  Get a hidden camera if you feel you are in danger.  That was going to be my next step, until mine went to live with someone else.  Also, it is a lot of work and eventually boring to the child to keep up this act.  The cracks in his facade will begin showing.  Good luck, and you are lucky he is being accountable to outside agencies now.