When Edvard Munch’s painting The Scream was stolen in 1994, an undercover operation was launched to get it back.

Thirty years on from its recovery, hear from the art detective at the centre of the story.

In 2013, Charley Hill told Lucy Burns how his task saw him take on a fake identity, rub shoulders with criminals and encounter the Thai kickboxing champion of Scandinavia.

(Photo: The Scream on display in Oslo in 2008, after being stolen for a second time. Credit: Scanpix Norway/AFP/Getty Images)