Sir, I have recently had occasion to give my support to a local demand by parents and teachers for a patrolled crossing over a busy road outside their children's school. I have been appalled at what I have learned.

First, that such requests are considered on the evidence of traffic volume, the number of children killed and injured, and the degree of ‘negligence’ of a child in contributing to his own injury. Second, the battle to justify the need for a crossing patrol has to be fought over and over again, by each school independently. Must we then draw up, for every school, a profit and loss account of children killed and injured balanced against inconvenience to traffic? Traffic volume is irrelevant, any traffic constitutes a risk. Can a five-year-old be ‘negligent’ in law? A child is a child is a child: of course he is ‘negligent’ — whatever that means! Whose children are they but ours who drive the traffic?

There can be no argument. The issue is, do we suffer some occasional inconvenience as we drive or do we prefer to risk death and injury to our children? There is only one answer and I am sure the police are only too painfully aware of it but find themselves trapped in a maze of bureaucratic nonsense, sanctified by committal to print and blessed by precedent.