Victims of the Post Office Capture scandal have called on Andy Burnham to “stand by his words” and speed up their bid for criminal convictions to be overturned and proper compensation awarded. Around 30 former sub-postmasters and their families are still waiting for the courts to quash convictions related to the discredited Capture accounting system. It was first introduced in 1992 and used by thousands of branches long before the notorious Hori…