Last year I experienced to be the victime of efficient CCTV (Closed Circuit TV) surveillance in Bristol UK. My car was parked illegally and got towed away. Later at the police car pound I was told that all the streets could be seen through remote controlled zoom lens CCTV cameras mounted all around town, which made them able to efficiently direct their towing trucks. Somehow the equipment has to be payed off. Audun Josang. I used to be very uncertain, but now I'm not sure anymore.