Len Woolgar was six foot four, built like a brick shithouse, and unbelievably lazy for a man in mint condition. Put him in a rowing boat on the river and he was a demon – practically Olympic standard, so they said at the Yard, which was why he’d joined the force. The Metropolitan Police boat crew was top class. But put him on an actual police job, requiring thought and dedication to duty, and he was a liability. He was usually hungry. He would be now, but he’d had two egg sandwiches for tea before they left. A third created an unsightly bulge in the pocket of his coat.

