Can I file a case against a person who I brought into my house and stole money from my mom?

I brought a person in my house. I had a bag with cash, watch and some important papers in it on the dining room table. When we left, it was there. We got into the truck. She said that she left her bag in my house. She left the truck to go get it. She came back with it. We left. When I came back home, the bag was gone. I called her but there was no answer. Also, when I got into the house, my mom said somebody went into her handbag and took some money. When I left with the person, we went to the store. She was buying things. She was pulling money from her bra. She didn't have any money and money I was going to give her, I hadn't given to her yet and the money that was in the bag has no 20's in there. She went into my mom’s bag to get the money.