There are moments in a nation’s history when something so shocking happens that the entire country needs to pause, acknowledge what has occurred and ask itself some painful questions. The Post Office scandal is one such moment for Britain.

How could hundreds of innocent people be imprisoned, when we have always regarded our justice system as reliable? How could such rampant injustice continue for 16 years? How has our formerly equitable society descended into an institutionalised antithesis of privilege and disadvantage, with senior officials in both public and private corporations trampling over the rights of ordinary people who happened to get in their way? What kind of country have we become? And, most importantly, what are we going to do about it?