Is he a brand-new, "wet behind the ears" T ? If so, he may be not much up on protocol with his clients. I agree with stop dog, however ... he has no right to your property, which it what your writing is. If this is some sore of reverse-psychology ... Lousy technique.

No, sounds to me like the college prof freely taken his graduate students' work and calling it his own. I would have a hard time trusting this man. Unless I were already far along into to the recovery process with him, & felt we were a strong therapeutic team, I'd fire him and more on.