In 2020, police forces across Europe helped break the encrypted communications tool EnchroChat and learn about the activities of thousands of criminals, many of whom are now in jail. Four years on, we hear from journalist Mobeen Azhar who made sense of this complex case in his six part podcast series. He is joined by Matt Horne, former Deputy Director of the National Crime Agency who led the British investigation. It's going to be a fascinating fireside chat.