My stepmom is a kleptomaniac?

My stepmom is a kleptomaniac. My stepmom, dad, mom, and stepdad all own a bar, so she stole 3 sweatshirts from
At the bar. She also steals my clothes, she also stole 3 of my eyeliners and my Clinique and sephora eyeshawdow(that's the only thing I got back) she also stole my aunts rihanna perfume and my mothers eternity Calvin Klein perfume, she also had to go to court last week because she worked at a t and t and stole iPhones. I've tried to tell my dad but he always sticks up for her, i don't think I can call the police. But i don't know what to do:/She Always try's to blame me for taking stuff but I've never took anything from there.

Try to gather evidence that she stole.take pictures and tell your dad and show him the pictures of stolen items. You're young and adults might not believe in just your words. They need proof.