By City A.M. Reporter Those behind the Horizon scandal at the Post Office should be jailed, a minister has argued. Kevin Hollinrake, the Post Office minister, said on Friday it would be the “ultimate deterrent” to prosecute and lock up those responsible. The government has been scrambling to exonerate the hundreds of subpostmasters that were wrongly convicted and pay out compensation to those affected. Mr Hollinrake argued that people found to be to blame for the scandal “must be held to account” after the official inquiry reaches a verdict. He told BBC Radio 4’s Any Questions?: “If it’s indiv…