What could be considered a security violation at the gangway?

Allowing prohibited items or unauthorized persons to enter the ship is considered a security violation at the gangway because it directly impacts the safety and security protocols that are critical for the vessel's operations. The gangway serves as a primary entry and exit point for personnel and goods, making it crucial to control access to prevent potential security threats. Unauthorized individuals could pose a risk to the ship’s crew and assets, while prohibited items could compromise safety regulations or security measures on board. Hence, maintaining strict access control at the gangway is essential for protecting the integrity of the ship and ensuring the safety of everyone on board.