Why is Karyn McCluskey not a Dame? Along with a colleague she revolutionised the way Glasgow tackled its notorious gangland problem, reduced killings, attacks and made the city streets safe again for the first time in generations.

The former nurse from Falkirk persuaded authorities to treat violence as a disease, a health problem rather than criminal justice issue and the killings and slashings dropped dramatically in a city that was once known as the murder capital of Western Europe. Karyn's strategy was so successful it was adopted in London where murders have also fallen to a new low. And cities around the world are looking to copy. In this episode Karyn explains how it works, an enlightening positive discussion with a remarkable woman who deserves more than an honorary degree from the Open University.

Is this the biggest miscarriage of justice in UK history? If Michael Stone didn’t kill Lin and Megan Russell and leave Josie for dead, then who did? In a major new development, a star forensic scientist has cast doubt on Stone’s conviction, he’s protested his innocence from behind bars for almost 30 years.

In this latest episode, we assess the chances of Stone walking free, and they are high - so says Britain’s leading criminologist who has studied the case and spoken to a member of the original investigation.

We all loved Alan Carr but what does it take to be a real traitor and what are the real consequences if caught? For many British traitors it wasn't a round table, a hug from Claudia, black Land Rover home and an interview on This Morning, real traitors faced the hangman and several were executed for treason.

In this epsiode we highlight three real traitors, two sentenced to death, the other escaped to be a Soviet hero.