Justice Secretary Dominic Raab will appeal against the Parole Board's decision to release Baby P's killer mum Tracey Connelly.
Connelly, now 40, was jailed in 2009 after causing or allowing the death of her son Peter Connelly - known publicly as Baby P - in London's Tottenham, in 2007.
The 17-month-old, who was on the council's at-risk register, had suffered months of abuse and more than 50 injuries.
