Tracey Connelly, the mother of Baby P, who died after months of abuse, will be released from prison after the Parole Board rejected a government challenge against its ruling.
Connelly, 40, was jailed in 2009 over the death of her son who suffered more than 50 injuries, including fractured ribs and a broken back.
The case sparked outrage as Baby P received 60 visits from social workers, police and health professionals over eight months.
Justice Secretary Dominic Raab had asked the Parole Board to reconsider their decision to release Connelly.
He said the decision demonstrates why it “needs a fundamental overhaul – including a ministerial check for the most serious offenders”.