Sussex Police and airport operator BAA are calling on the entire community at Gatwick to combat the threat of terrorism.

Posters, leaflets and pocket-sized guides containing information about the kind of activity police are keen to hear about will be circulated to staff, drivers and aviation enthusiasts at the airport.

Chief Superintendent Phil Clarke said: "We want everyone who uses the airport to work in partnership with the police and BAA to keep Gatwick safe.

"Officers will be encouraging staff to look at the behaviour of others and to be alert to strangers asking about the type of job they do, their uniform, their training or the security in place.

"Drivers of buses, taxis, minicabs and delivery vehicles are another section of the airport community the police are keen to encourage to remain vigilant, as are aviation enthusiasts.

"Thousands of people pass through the airport every day.

"The aim of this campaign is to encourage everyone but particularly those whose working lives are spent around the airport, to be vigilant against the threat posed by terrorists.

"Airport staff should trust their judgement.

"If an activity concerns them, then it will almost certainly be of concern to the police and airport security staff.

"Vigilance makes the airport a hostile environment to the terrorists and denies them opportunity. It prevents attacks and saves lives.

"Our message is, even if you are unsure about your suspicions, do not hesitate to contact the police either by calling 999, the Gatwick police control room on 0845 6070999 or the anti-terrorist hotline on 0800 555111."