Oh that's just great ~ just what we need. A return to the Victorian values of 'segregating the loonies'. Welcome back to bedlam.
'kin Idiots!! What we need is better care and secure hospitals where these people will get help and treatment (if there is any) for their conditions.
What would we do with people with broken bones if the government passed a law saying they were a threat to public safety coz they have lumps of plaster on them that could hurt someone? Lock 'em all up? Or are we now going to say that because someones brain isn't working properly (which, in reality please remember, means that they are ill) we now need to treat them like criminals?