Hot on the heels of her best-seller Unlawful Killings, Wendy Joseph KC skilfully reconstructs four courtroom dramas, drawing on her many years’ experience as a murder judge to ask if our justice system works, and if it has improved or not over the centuries. With host Marg Mayne.

This event is sponsored by Tassells Solicitors

Nick Harkaway's Karla's Choice is a thrilling return to the world of spy fiction's greatest writer, John le Carré. Nick Harkaway, whose real name is Nick Cornwell, talks to author and journalist Alex Preston about the shadowy world of George Smiley created by his father David Cornwell, who wrote as John le Carré – and why he decided to re-introduce the redoubtable agent and his steely nemesis in this page-turning plot of deceit and danger.

BBC Security Correspondent Frank Gardner talks to Julia Wheeler about Invasion, the latest of his bestselling Luke Carlton thrillers, which traces an ominous gathering of Chinese armed forces and the threat of unpredictable global conflict.