Understandably, there was a lot of concern at the end of October when passengers arriving at Leeds Bradford Airport from Brussels were mixed in with passengers arriving from Dublin and consequently were allowed through Passport Control unchecked.

Most of us these days are very security aware. Two of the big issues facing the country are terrorism and illegal immigration. A failure of the measures put in place to check arrivals into this country could conceivably lead to what Councillor Neal Hunt, a founder member of the Airport Community Forum, has described as "something nasty" happening.

After that October incident, a letter from the chief executive of the Border & Immigration Agency, Lin Homer, pledged that "local procedures have been reviewed and strengthened to prevent a recurrence of such a situation". Yet barely six weeks on there has already been another security error, with passengers arriving at the airport on an international flight being taken through the domestic arrival gates.

Fortunately in this case the human error was detected quickly and the international passengers were redirected past immigration officers and checked. No harm was done. But the fact that such a mix-up occurred at all suggests that there is still work to be done on the procedures at the airport.

If, as Councillor Hunt suggests, these problems are arising because low-cost international flights are expanding faster than the airport's methods of dealing with them, the matter needs to be dealt with urgently to minimise the chances of that "something nasty" ever arising.