2024 was the year when the Post Office's victimisation of sub-postmasters became a ubiquitous national story, after the airing of an ITV Drama. "Mr Bates vs the Post Office" was viewed by more than 10 million people, and brought political momentum to the resolution of the ongoing injustices associated with the scandal. Before the election, the government passed landmark legislation to cut through the achingly slow judicial process and speedily overturn hundreds of convictions in one fell swoop. It was a major victory for Sub Postmasters and campaigners - but does it mean the scandal is over?

In a new episode of "The Great Post Office Trial", Nick Wallis goes behind the scenes of the efforts to get that legislation passed, hearing from the then Justice secretary and Post Office minister on the complex negotiations against the clock that got it through. And he also hears about the key compromise that helped reduce criticism from the judiciary - but has left some convicted sub-postmasters still out in the cold.

He also explores the question of accountability at the top, as the police investigation grinds on, revisiting the evidence given by former Post Office CEO Paula Vennells, which was pushed out of the news cycle by the announcement of the election.

And he hears from Sub Postmasters who are still frustrated by the pace and quantity of compensation payments, as more victims of this scandal continue to be put through the ringer in pursuit of the compensation the government has promised; he puts their concerns to Gareth Thomas MP, who has taken over since the election as the minister responsible, and Neil Brocklehurst, the Post Office's interim CEO.

Producer: Robert Nicholson Executive Producer: Will Yates Sound Design: Emma Barnaby Research: Artemis Irvine

A Whistledown Production for BBC Radio 4.