Sir – I have great sympathy with Roger Moreton’s letter (July 28). So many of us have suffered from groups of visiting students in Oxford with ‘staff’ who are not prepared to take responsibility for their behaviour.

Of course, if there were a bus route that ran through the city, say, from Kidlington to Headington, fewer people would be forced to walk from Magdalen Street to New Road every day to change buses but this would not alter the behaviour of visiting students who consider that they are the only people on earth. If there are laws, by-laws and rules governing this sort of behaviour, as I am sure there are, then they should be enforced, by those trained and paid to do so, every time they are disobeyed.

Where are the police? If my experience yesterday is anything to go by, the pair of police officers standing on the corner of High Street and St Aldates seemed to be amused at the pedestrian chaos on Cornmarket. They certainly were not making any attempt at a proactive response.

Laws and rules without enforcement are pointless.

Jonathan Gregory, Kidlington