Only thing i would point out Stew is that there is a vast difference between keeping eyes on a person walking than there is a person travelling at high speed on a motorbike.
Lets say a person takes off on foot, at best the average bloke will at what 5mph, how far could the average person run, say 5 miles if that?
So you've got 1 hour, you have time to select other cameras, even if they take a turn the operator has the time needed to put that camera in position and move it to follow the subject, they might even be able to zoom in.
Now think that the operator needs to find a small motorbike in a heavy traffic area like London, not only will they have to search through all the cars, behind buses, trucks, vans etc, there will also be other motorbikes, scooters and pushbikes to search through, would the average CCTV operator know a GSXR1000 from say a CBR600?
What about a GSXR1000 from a GSXR600?
My bet is most would be on the lookout for a white and blue sportsbike, it's not like you could zoom in on a bike travelling at anything over 20mph to get the number plate.
Just did a search and found this image
IF the bike is in a area that has a camera and is travelling at high speed, it's speed would be a obvious give away, what happens if he slows down to the same speed as the traffic in a dark area though?
Plus as i said what happens when the person goes into a area that has a different control room, or goes out of camera?
Even then it's unless the biker lives in the square mile, there is no way the CCTV will be able to follow him to his home, so all you'll have is a rough idea of the direction he was going when you lost him.
Last thing i'll say on this is, just look at what the police use now to try and catch suspects in or on vehicles, they use helicopters.
There is a good reason for this, it's because it's impossible to trail and direct police to a vehicle travelling at high speed using CCTV cameras.
