Police doing facial scanning of Christmas shoppers from an unmarked van in Leicester square, London. The thing on the tripod is probably a radio antenna and the front black sensor looks like a depth camera with pattern projectors.

I notice the van is jacked up, and I expect that's because if you have the engine running that would otherwise start oscillations in the scan which might make it hard to obtain small 3D structure of faces.
facial_scanner.jpg
facial_scanner2.jpg