What general precautions should be taken against stowaways boarding in port?

MCA Oral Exam Questions

 Masters should have a watch kept on the gangway. They should prohibit stevedores from certain areas and have a watch kept on them. Searches should be made of the ship before sailing.

The Nautical Institute's Maritime Security suite recommends: (1) checking everyone embarking and disembarking; (2) sealing off certain parts of the ship to prevent access and reduce the areas and compartments which may need to be searched; (3) conducting searches of vehicles and loose cargo; and (4) posting a lookout to prevent people climbing aboard. An extensive, systematic and detailed search of the ship should be made immediately before departure, especially from any high-risk port or place, where the use of dogs may be advisable.