David Lammy has said it is "unacceptable" that 179 prisoners were wrongfully released from jail in the last year as he vowed to reform the "archaic" prison system. Mr Lammy, who is deputy PM and Justice Secretary, unveiled a new Justice ID system - a digital identity system - to track every person who enters the prison system from arrest, through the courts, into custody and back into the community. For the first time, biometric technology - such as fingerprints and facial scans - will be used