A security incident occurs on board — for example, evidence of an attempted unauthorised access or interference with cargo is discovered. Your examiner asks: "What basic evidence-preservation principles should the OOW/SSO apply?"

A. Basic crime-scene principles apply: do not disturb, move, or clean the affected area or items any more than necessary for immediate safety; photograph or otherwise document the scene and any items of interest before anything is touched or moved; note and log exact times of discovery and of any subsequent actions; identify and record who had access to the area and when, where known; and secure any CCTV/security camera footage covering the relevant period and location before it can be automatically overwritten or lost, so it is available for the CSO, flag state, port state, or law enforcement investigation.

B. The area should be cleaned and returned to normal operational condition as quickly as possible so that the incident does not disrupt cargo operations or the ship's schedule.

C. CCTV footage is automatically preserved indefinitely by all systems with no need for any crew action, so no specific step is required to secure it.

D. Evidence preservation is solely the responsibility of shore-based law enforcement once the ship arrives in port — no on-board action is expected or useful before then.

A. Nothing — a test lift can proceed immediately after repairs

B. Testing should wait until cargo operations begin

C. The area within the grab's swing radius should be cleared of personnel before the lift

D. Only the crane operator needs to be aware the lift is happening

A. Who must remain clear of the exclusion zone while the lift takes place

B. The lunch schedule for the deck team

C. Only the weather forecast for the next watch

D. The cargo manifest for the next port