[Private to Charlie/Justin]
I'm on holiday. I don't really have access to any records here.
If they picked her up for mouthing off or minor inappropriate spell usage, she would likely be in holding at the Ministry. If... She was on her last warning in regards to curfew. If she got caught out after hours, she was going to be sent to- to- [handwriting gets shakey] Azkaban. She can't be there, she can't
Talk to Zacharias Smith. He's friends with her as well and may be able to find out if she's in the Ministry. Her tracker should be able to get you a location if she's in the UK, but talking someone into giving you that information with your cheery personality wouldn't likely work.
I can't believe I'm doing this At one point, Luna Lovegood was looking into figuring out how the tracking charms were done. I'm not sure how far she got with it, but there may be a slim possibility that she might know enough about the charmwork involved that you may be able to figure out how to track her yourself. It's a longshot, but it would mean not dealing with the Ministry on the matter.