My email communications with my therapist and the recordings of his phone messages were a part of my complaint. They served as the evidence to back up my claims. I don't know if the board will accept audio recordings if there is no prove that it was done with the therapist's permission. I knew someone who had recorded conversations with her therapist with his permission, but the recordings were not accepted by the board as evidence, I suspect, because she couldn't prove that she obtained the permission. All my emails and voice mails were accepted as evidence, because those were messages he left himself.