Police spotting (junction watch)

They were doing a combination of things.

Saw them book a few cyclists and motorists for RLJing and riding across a ped crossing while peds were crossing. Seemed to be a general spot check rather than a cyclist crackdown.

They had spotters on side streets radioing ahead. The people riding out of Southwark park were sitting ducks.

Might be a belated reaction to the accident down that way last week ?