His style was now set, it would be anti-surveillance, turning the camera from a device that focuses in on the most important part of the frame, to one that captures the wider view and pushes the viewer to seek out the significance of the picture.

BBC: Paul Graham: Photographs 1981-2006

Mr. Kelly said the department had been working with a security-and-surveillance systems manufacturer based in Britain, along with the London Metropolitan Police, to develop the device.

WSJ: Police Test New Scanner