These checks are of course designed to see if people are convicted paedophiles.
One thing that's struck me about all of this (and I have not heard discussed) is why are there so many convicted paedophiles walking amongst us? (and are we all under suspicion? - of course we are!)
Once someone has been convicted of such crimes I think they should lose their liberty. There is no cure for paedophilia so we must remove them from society.
Wouldn't that be easier than checking (and suspecting) every man and his dog?
And morally right to boot.