@teenagersaaaaahhhh
Sorry that should say will the school involve the police? Would she be excluded?
The only thing that's making me doubt it's true is that she knows I sometimes check the group chat so why would she put it on there? It might be a cry for help and not actually true (let's hope it is).
She has also said on there about previously nearly being expelled, about taking an overdose when she was younger, she's on CAHMS waiting list I think.
I'm definitely contacting school. If anyone here works in a school what will they do? Surely she'll just deny it?
Not necessarily. They might perform a bag search - if they find some on her, it's likely then that she'd be suspended, but the more important thing is that they'll know she's either using or 'just' struggling with her mental health. They might be able to speed up her appointment (no guarantees, CAMHS is rammed) and provide additional support, plus ensure that she doesn't leave class during lessons, as that's the sort of thing that leads to somebody taking drugs in the toilets/an empty classroom/somewhere else on site.
They don't have just a duty of care towards her, they have one to the other students, so they have to take into account that she might be posing a risk to other by bringing drugs into school/dealing - which is not as rare as you'd think. And there's the issue of grooming/county lines to take into account - girls with MH issues, good girls, the ones that people assume won't be involved with that sort of thing are perfect targets.
And it means that they'll be aware there is the possibility of drugs if she's taken ill. You need to know if somebody's taken something when they say they feel sick or dizzy, as not all staff will be familiar enough to spot the possibility - that additional knowledge could be vital in identifying an ambulance situation rather than a 'go back to class now' or 'she's not feeling well, can you pick her up' where the parents might then go back to work.
Basically, there are so many variables at play, we don't know for certain what will happen, other than the safety of both that girl and other students will be foremost.
You'll be doing the right thing.