A confined spaces expert who gave evidence at the inquest of dead M16 agent Gareth Williams, has questioned suggestions that the spy's death was accidental.

Peter Faulding, who was asked to see if he could escape a padlocked sports bag like the one Gareth Williams was found in, said that he could lock himself in the bag - but was unable to put the padlock on.

He told BBC Radio 5 live's Phil Williams that there was no DNA traces on the padlock or outside of the bag, and that Gareth's "foetal position" and "calm manner" indicated that his body was placed into the bag after his death.

However this week the Metropolitan Police said an evidence review had found "it was more probable" no other person was present when he died in his London flat.