Investigating murder and mutilation in Ukraine

A catalogue of atrocities is emerging where Russian forces have withdrawn from parts of Ukraine. Film-maker Emile Ghessen tells us about the harrowing scenes he’s witnessed in Bucha.The evidence of war crimes appears compelling – mass graves, bodies of people whose hands have been tied lying in streets. But how do you prove who is responsible?A former war crimes prosecutor explains to us how investigators are already gathering evidence in the midst of conflict, and how social media could prove crucial.And 40 years since Britain’s task force sailed to retake the Falkland Islands a veteran journalist gives us an extraordinary insight into the Argentinian dictatorship that had invaded – a regime that nearly murdered him, then treated him as an honoured guest.