The hard-hitting police campaign against car-jackers in Bradford will surely be widely welcomed, especially by drivers of the more upmarket models which are particularly being singled out.

The antics of these criminals have been causing a lot of concern, with 16 motorists targeted in the last three weeks. Many drivers are now anxiously checking in their rear-view mirrors for cars following too closely, fearing that they might be the next to be "bumped" and stopped, and have their keys snatched and their vehicle driven away.

This crime, which is not peculiar to Bradford, is the sort of additional stress factor that people who live and work in cities can well do without. Everyday motoring in urban areas is difficult enough as it is.

So good luck to the police as they, in their words, "take the game" to the criminals. By using the latest technology available - a device known as The Shark which can scan nearly 2,000 car registration plates in three hours and check them rapidly with a constantly-updated database - they have already notched up encouraging successes, with two suspected car thieves arrested over two days, and one stolen vehicle recovered.

A side benefit is that dozens of road-tax evaders have been identified, which will no doubt be very satisfying for those law-abiding motorists in Bradford who complain - often in letters to the T&A - about the large number of cars they see on the roads with either an out-of-date road-fund licence or no licence at all.