Stepdaughter stealing.. am I wrong??

Question

So my stepdaughter is 16... she recently been bragging to me about stealing.. 
idk how to say this but her mother committed suicide.. my husband was deeply depressed about this so he fell into drugs and what not so his kids stayed with grandma.. by the time he got clean they were used to being with her and he didn’t want to take them away from her.. but she doesn’t discipline at all... we live super close and see them everyday.. 
I’m 25, so the daughter feels like she can say whatever to me.. she trusts me!! 
Well, like I said, she has been bragging about stealing little things to me. “Oh I grabbed a candy when I was checking out” type stuff... or “my friend wanted this but couldn’t afford it so I grabbed it” 
NOW I’m thinking of taking her to the store, asking her to take something for me.. but before that letting the store know it’s happening... so they stop us and find it.. and scare the shit out of her!!! So she stops!!! Of course in the end I would let her know that it was me but that it could easily happen with anyone and they would act innocent (just like I would in the fake)... I just want to teach her a lesson.... 
is this to much? Should I not?? Does anyone else have ideas??? 
I’ve spoke to her father and he has no idea what to do! I didn’t tell him my possible plan... I just need more advice! I feel so wrong even thinking this, but I need her to stop before she gets in real trouble... 
And before anyone says anything I HAVE told her that’s it’s not ok and I don’t agree but I’m not in a positional punish or discipline her...
Edit; her dad is so scared of her committing suicide he will never do anything.. because she threatens it whenever she doesn’t get her way.. she goes to therapy twice a week and also brags about how she manipulates them.. I feel like the only way to get it through to her is to scare the shit out of her!! I was planning on telling her to steal something small like less than a couple dollars.. she wouldn’t get arrested for that but she would get held... what else can I do??

Answer

Don’t tell her to steal something and then get her in trouble for it. That’s totally contradictory and doesn’t make sense. 
Instead, I’d try to use logic. I’d ask her what she wants to be/do in life. Does she want a career? If she does then I’d let her know that many places won’t hire her if she has a criminal record. Basically I’d try to explain the natural consequences and how it’s not a smart choice and why (don’t forget to mention jail). 
If that doesn’t work, I’d bring the concerns to the therapist in hopes they could help work through that with her.

Answer

This is a tough one. I think honestly the best advice I have is to talk to a counselor/ therapist. Ask them the best way to go about it. And her dad should be involved as well. You don’t want to trick her into stealing and end up losing her trust. Or go to the local police station and ask for an officer to have a talk with her. Idk sorry if I’m no help, I didn’t just want to read and run. I hope you find a good solution.

Answer

Don’t do your plan unless youd be ok with having her actually get arrested because that is most likely what would happen. Unfortunately most likely what will happen is she will continue stealing until caught and then MAYBE she’ll learn her lesson or she’ll just continue and get in worse trouble

Answer

She needs to be in therapy

Stepdaughter stealing.. am I wrong??

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