My Grandmother is a 89 year old who lives in a senior building alone. She is suffering with early stages of dementia but still is able to do for herself. We make sure all her bills are paid and she has everything need. The problem is my mom signed a document making herself power of attorney without my Grand-mom's consent. She even had it notorized without my grandmother being present. She has used to the document to be able to be placed on bank accounts which she is not writing checks to herself and withdrawing money using a ATM card that she has in her possession. My grand-mom has no idea that she is on her account nor that she has a ATM card. Every month for the past 3-6 months my mom withdraws around $500.00 for her own personal use. Every visit we make to my grand-mom's she never has groceries or other personal items that she needs. When ask if she wants us to take her to store she always says no because she doesn't have any money. My my is taking full advantage and stealing. What would I need to do to have this fraudulant document investigate and second to bring charges against my mom for forging my grandmothers signature to get this document to for the sole reason to miss-use financial funds?