I just seemed to see a lot of police officers around today. I saw half a dozen police vans, and at one point on Cavendish Road, eight officers within a couple of hundred feet. The odd thing was, they didn't seem to be interrelated in any fashion. There were a couple of pairs on feet, one walking with a non-uniformed person, two in full Met police on bicycle kit (ie dayglo etc), on their bikes, and one on a bike, just wearing "normal" police officer clothes, plus a helmet.
(Actually some of them could have been PCSOs, I didn't check that closely).