Inspector Winkfield

In the short story The Shadow on the Glass, Inspector Winkfield is the investigating officer who turns up at the party hosted by the Unkertons at Greenway's House to investigate the shooting of Moira Scott and Captain Jimmy Allenson. After questioning the various witnesses, he comes to the conclusion that only Iris Staverton could have done it. He therefore did not welcome the arrival of Harley Quin whom Mr Satterthwaite said could help elucidate what had happened. Nonetheless he did not object to listening to Quin's inputs.

Winkfield is described as "a shrewd-looing forceful man of forty odd.

In the short story The Bird with the Broken Wing, Inspector Winkfield is the investigating officer arriving at Laidell after the death of Mabelle Annesley.