I have to admit I would not want a prospective employer delving into my medical records.
not that I have anything to hide per say, but as a young 'un I had many a medical complaint that is totally irrelevant to my life now but I could see how the amount of illness I had as a child would concern a former employer ifyswim?
also, hypothetically, say you had a period of depression etc in your teens, this would show up but is it really fair to make that common knowledge to an employer?
they would obviously hold this (unfairly??) against you.
also, the CRB process is rubbish. I have a nanny friend who couldn't be bothered to list all the addressees she'd lived at for the last 5 years so she just put one and it went through, no questions asked!
my answers sound proper shifty lol