My brother who has a gambling problem took money from Mom. He has past arrests for theft and he lies. He warmed up to mom who has emotional issues and early dementia, gained her trust and she showed him where she kept her cash. Now she wants to tell the police but she doesn't want to cause trouble between my brother and his partner who does not know about his past. I'm not sure what to do. I am POA and put all her cash in the bank. He used to spend time with her to give me a break, now she doesn't want him there. I am afraid he will steal from her again if he can. Help please.