My Nan was diagnosed with dementia in her late twenties, I'm aware she takes medication for anxiety, she regularly has bouts of severe depression and she's extremely paranoid which makes her very hostile at times.
The consistent paranoia for the past couple of decades is that she believes 'people' are breaking into her home and stealing her possessions and money that she hides. Sometimes the family are the 'people', sometimes the neighbours are the 'people' and sometimes she's sure it's actually the police who are doing it.
What makes things worse is that she drinks and when she gets drunk she'll move stuff in her house which when she sobers up the next day confirms to her that someone was there last night and moved the cereal box etc.
Recently, she didn't turn up for Christmas dinner at my Mum's house (who lives a 2 minute walk away from her). So we knocked on the door to give her Christmas dinner and presents. She was drunk and she told this elaborate story of how she lost her door keys and couldn't get into her home a week ago and she said she had no one to go to (my Mum lives 2 minutes away). She said she found a man, she didn't know who he is but he helped her get into her house. But now she leaves her back door unlocked 24/7 in case she loses her keys again.
This didn't make any sense because her front door had no damage and the locks hadn't changed. When asked how did the man help her get into her home? - She couldn't answer and would go on other tangents.
I'm terrified at the idea of her leaving her back door unlocked, she has a garden with low walls and it's a high crime area.
I was thinking about getting her CCTV as to ease her paranoia and also as a safety precaution if her back door is unlocked.
Will this help ease her mind OR will it just lead to another issue to be paranoid about I.E she might think we are all spying on her with the cameras. (She's scared of technology, won't use debit cards and doesn't understand the concept of the internet).
Does anyone have experience with this sort of thing?