Right. We need to get you to the Medical Wing ASAP.

[He grabs her arm firmly, with a quick and quiet "sorry", before he directs her to an area that, from there on, would be the 'Hospital Wing'. He sits her down there.]

Right, so after you get looked at by Healer, I'll come back and speak to you.

[Clearing his throat again, he does sound very stern when he addresses her.]

Ms Mercer, we found drugs in your robes. You do realise that this is a very big offence here in Hogwarts?