Sexual crimes against anyone are terrible, but against helpless youngsters in care they are the worst kind of human behaviour and any culprits must be exposed and punished severely.

Otherwise those who have done it since and are doing it now feel no danger of being caught.

It will reflect on the prime minister personally, his whole government and us the nation, if he does not take personal command and restore the nation’s pride and conscience.

Expose anyone involved, from top to bottom, and make them pay dearly and be banned from public office or positions of public care for ever.

George Appleby, Leighton Croft, Clifton, York.