Lancashire police are working with the region's airports to stop sex offenders who are travelling in and out of the country illegally.
Those on the sex offenders register must notify the authorities if they're travelling abroad.
Lancashire police chiefs say they're to cut 73 million pounds from their budgets.
The force will cut a further 200 officers and 550 staff over the next four years. It means a total of 1250 staff will lose their jobs.
Lancashire's Chief Constable also said the force would reduce from six divisions down to three.