How a civil servant got away with juggling five jobs for so long

He'd been on sick leave from his job at the UK Health Security Agency (UKHSA) for nearly three months and Adams, his line manager, wanted to put a plan in action to ease him back into work.

At the start of the call, Chowdhury was coughing and waving tissues up to the camera in an attempt to show how ill he was. But what really caught Adams' attention was how pale he looked.

She noticed white powder had started separating from his forehead. "He was sweating, it was like rubbing off, so it was darker underneath and darker on the neck," she told his trial.