Professor Denis Cusack:

I mention An Garda Síochána as well. The RSA has done a great job. Human behaviour is such that when we know somebody might be down the road enforcing the law with a penalty, we are more likely to comply. Regarding fixed cameras, I travelled in Germany recently. We all slowed down because we knew there was a camera around the corner. Sometimes human behaviour is such that we actually need to know the long arm of law is there.