When should the GPOW conduct security briefings for crew and visitors?

The GPOW should conduct security briefings for crew and visitors before allowing access to the ship or during major port visits because this timing ensures that everyone is informed about the specific security protocols, threats, and procedures in place before they enter a secure area. By providing the briefing in advance, the GPOW can highlight any unique considerations related to the ship's operations or the port environment, thereby addressing potential security risks proactively. This approach is critical in enhancing the overall safety and security of the vessel and its personnel, especially during times of increased risk or when visitors who may be unfamiliar with the ship's protocols are present.