Following my Mom's dementia diagnosis my siblings received a copy of her will. Mom's "truth" now depends on who she is with at the moment and is easily convinced to do something in complete conflict of her trust and/or last will. I have co-durable power of attorney and co-guardianship with my sister who has only now received a copy of Mom's last will. Mom did not want my sister or brother to have a copy of her will until she passed, knowing they would argue and bager her with her choices. They are now taking things from her home if the items have been bequeathed to someone and they do not agree it should go to that person. My sister has also moved a large amount of money from Mom's bank account to her own. Are these activities just unethical or are they crimes?
Immediately secure the house; change the locks and take inventory.
Close what remains in the bank account and reopen it, perhaps at a different bank. Make it clear to the bank management why you've had to do this, as you'll expect their cooperation in the hopefully ensuing investigation.
And don't tell the other siblings where you've transferred the funds.
Do contact the police; unauthorized removal of funds is theft, perhaps grand theft, depending on the dollar amount. If this was the sister who's co-guardian, I would think it's ground for removal.
I still don't understand why anyone would breach your mother's trust by relesing copies of the Will. And if you knew about these activities beforehand, or were the person who gave them copies of the Will, you may have breached your fiduciary duties.
It's definitely unethical, immoral, and exploitative.
They are stealing from your mother.