The government is under increasing pressure after a number of high-profile wrong releases.
Home Secretary Shabana Mahmood is taking cues from some of the toughest migration laws in Europe.
Robert James Purkiss faces extradition over allegations he murdered Agnes Manjiru.
Sgt Lawrence Hume was filmed calling for a Charing Cross police station detainee to be beaten up.
It comes after Lisa Nandy was founded to have breached rules during a Labour donor's appointment to the role.