My friend has a daughter who went through this.
The girl lived across the street from them and it was really none of my business, but I'd known my friend for many years before this family moved in.
I flat told my friend that I didn't like that girl. I felt bad for saying it, but she wasn't even subtle about being shifty.
The girls were in middle school and that girl got my friend's daughter in so much trouble. Now, granted, my friend's daughter should have been smart enough not to go along with her, but only one of the girls ever got punished.
My friend thought that being grounded and in trouble all the time would be enough for her to learn her lesson.
My friend's husband got a job transfer and they moved. About a year had gone by and the girl started calling my friend's daughter. Against their better judgement, they agreed for the girl to come and stay with them in the summer just before it was time for school to start.
The parents came to pick the girl up and take her home. Told her to make sure she hadn't forgotten anything. She assured them she hadn't.
That night, it was discovered that all the new school clothes that had been hanging in the closet were gone. The tags had never been taken off. And, a whole bunch of music CD's were also gone.
My friend didn't want to jump to conclusions. She thought maybe it was a mistake of some kind. She had her daughter call the girl to ask if maybe she had accidentally gotten some of her clothes and CD's mixed up. The girl said no.
Well, no one else had been staying at their house so my friend called the parents to ask.
The mother told my friend that yes...her daughter came home with new clothes with the tags still on because her daughter had bought them with her own money. As far as the CD's, they were ones she said that my friend's daughter had "stolen" a year before and she had every right to bring them home.
When it all boiled down to it, the mother was as much a liar as her daughter was a thief.
That was the last communication.
Oh....I take that back. The girl called wanting to come visit the second half of Christmas vacation. Like inviting the Grinch in to steal Christmas? No way.
Now...I raised a daughter and I had a strict rule about sharing things. Not that sharing is bad, but this pair of pants are lent out and never seen again or this pair of shoes.
When it came to my daughter, I taught her to neither a lender nor a borrower be.
If a girl spent the night and wanted to wear some of my daughter's pajamas, fine, but they better be in the hamper in the morning.
Kids can't keep track of their own stuff in their own house let alone remember who borrowed this or that.
The other thing is to make your daughter work to earn some of her own stuff. When SHE has to pay for it, she will stop appreciating "friends" who help themselves.
The sad thing about the scenario I mentioned with my friend's daughter's school clothes, the elderly grandmother had taken the girl shopping and bought her those things for payment for all the chores and work she'd done helping her over the summer.
She had earned those clothes, her grandmother bought them for her, and they walked right out of the house without ever being worn.
I hate to say it, but some kids see other kids having things and they figure it can easily be replaced if they take it.
That's not how I raised my kids to be. And you better believe if they came home with something that didn't belong to them, I didn't just believe someone gave it to them.
Anyway, I'm probably rambling.
Long day, sorry.
Your daughter needs to be protective of her things and if she knows someone who might take something, she needs to make sure there is no opportunity for it.
None of us need friends that bad.
Just my opinion.