Thanks, that's fascinating.
Do you think what I think is fair? The people who know the testator best, and, in many cases are also familiar with current medical knowledge of dementia, are the ones who can best identify and measure the changes in that person that are due to their brain disease(s).
They'll see the changes over the decades, they'll mark the mood and personality damage and the loss of meaningful understanding illness brings. They'll have 20 years' assessment time, if not more, and a great deal of medical knowledge gained from study and caring associations.
They're not necessarily medical experts, but they're certainly experts in the person. The rudimentary requirements of the current MCA don't seem to ask for more than that.
Naturally these people are usually the family - as you confirm, the last people anyone listens to. Sad, isn't it?
Just cos someone thinks you might be a beneficiary doesn't mean you're a liar or you've never met your parents.
Not everyone's after the money. Some families just think the truth counts and some even want to protect the dignity and care costs of their demented relations.
I'm pointing this out cos two people I know tried to their ancient relations giving various items away..
One of the old women was properly rich and the big stuff was in trust anyway, so her relations weren't after the money. But her DN who loved her was petrified that her distressingly insane aunt would give away all her own assets - ie care cash - cos the trustees wouldn't keep paying if she did.
The aunt was assessed loads of times on the psych ward but mental capacity remained. DN was increasingly panicky, and said the solicitor refused to listen to the pleas for intervention and had started to be rude.
When I visited the aunt in hosp, she graciously gave me her house after 3 minutes - I called the DN to warn her, which is how I found out about it. Visiting again the next day, the aunt thought I was an angel (delightful) and again handed over various assets, or tried to. I said thanks, offered her a cupcake and slipped out to ring the neice again. No joy with the MCA again. Upshot - aunt died penniless in a council home, rather prematurely.
The other case was an old alcoholic/Alz man who gave the deeds of the boomer London family home to a prostitute and her BF when they visited him for tea one day. Came as a surprise to his wife. She was moved into a hostel by the council aged 85.