Mr. Michael Finn:

I will allow my colleague speak in a minute because he is the expert on that. They are certainly having a massive impact in the zones where they are present. Fatalities halved in the first 700 zones because people knew they were there. The Deputy is dead right. People knew they were there and they complied. Should we have more? I would love to see more. In other countries they have fixed cameras so it is not hit and miss. The camera is there all the time and that is a massive deterrent to people. It influences behaviour because if people think they will be caught and get penalty points, they will behave. My colleague is probably more au faitwith its nuances because he was there from the very start of the programme so I will let him in to speak about it.