My mum is in the early stages of dementia and lives on her own in a council run bungalow. My sister lives nearby, but I live 140 miles away. Myself and my sister are really concerned as my mum takes money out of her account (a considerable amount), when she meets a "friend for lunch". This person has been selling my mum really cheap silver jewelry and charging a lot of money for it. I was very polite, but spoke to this woman to stop her from selling it to my mum. She has stopped, but although my mum isn't buying it now, her money has still gone when she gets home. My sister asks her what she has done with it, but my mum can't remember. We both think that this woman is taking money from my mum, but we cannot prove it. We are also suspicious of this woman due to a couple of hasty comments, she made when my mum asked her "what do I owe you". Any advice someone can offer to help us deal with this would be gratefully received.