In message , at 17:46:26 on Fri, 18
Sep 2015, Neil Williams remarked:

I'm not sure what you mean by "existing" CCTV given that the T2 car
park is very new.

I mean a regular, separate CCTV system designed for surveillance, not
one designed to see if cars are there or not.

My view is that the very recently installed per-parking-space CCTV at
Heathrow T2 does both.

--
Roland Perry