"I have to be convinced that you're not going to be a danger or a liability, at least not more than balances against the inconvenience of looking after while you're in there. I can find that out to my satisfaction with the fancy mind tricks if you like. If I let you out, you can see a light about your injuries; I'd have to check the exact spell the girls used to say whether one will be able to work through this kind of ward or not."