PRESSURE mounted on the government today to take action to fully exonerate — and compensate — postmasters and mistresses prosecuted in the Horizon computer scandal.

MPs returning to the Commons this week are demanding an emergency debate, with Labour calling for the Post Office to be stripped of its power to mount its own prosecutions.

An online petition calling for former Post Office chief executive Paula Vennells to forfeit her CBE has gathered more than a million signatures.