There are 35 air, sea and rail points of entry in the UK and in juxtaposed locations, which, by virtue of the nature and frequency of traffic and the numbers of passengers requiring leave to enter, have an immigration official presence 24 hours a day or during operating hours. All other ports of entry are attended to cover scheduled services, or on a risk assessed basis, or in response to specific intelligence.
Initial indicative costings for the staffing of all UK ports, including small ports, 24 hours a day suggest that the additional cost could be in excess of £104 million.