is_it_legal

Hi the company i work for has just had a state of the art system fitted so they say it is, now i dont know nothing about cctv but it a system that can be logged onto any time on the internet. I do not really have a problem with any of the system that my boss has had fitted except the 2 following points. 1. He has fitted a cctv camera in the canteen and some of us eat and take breaks in their and also get changed out of our work cloths. 2. He has fitted over 16 cameras and most of them are looking at the work force and some are covering main doorways and a few are even pointing down the road. can any one tell me if this is quite normal or is this not acceptable for my boss to do this, the company i work for is in the united kingdom. should you need any other information then please let me know, also if i have posted this in the wrong section then i am very sorry for that, many thanks in advance... is_it_legal