Police killer Harry Roberts to be freed

Home Secretary Theresa May said she strongly believed police murderers should be behind bars for life.

London Mayor Boris Johnson called the decision "sickening".

The Metropolitan Police Federation said the decision was a "betrayal of policing" by the judicial system.

It said Roberts' planned release, approved by a Parole Board panel, was a "scandalous, hurtful and abhorrent decision which opens the door even further for those who have scant regard for law and order".