Thanks all of you.

I too think it's a bit weird on some hand, I am sure normal T would never agree to such a thing. On the other hand, it's not about "understanding" or "observing" anything, it'd be more something like exposure, just that other people are around. I'm still thinking about it, I don't think boundaries would be a big issue in this case given the circumstances (sorry for being vague, I don't really feel comfortable sharing more). But thanks for all your input!

Edit: for what it's worth, the forensic T gave a similar suggestions when I first saw him, so it seems it'd at least be kind of ethical (that guy is a walking ethics board if I've ever seen one).