The Master's Legal Position
A stowaway — any person who secretes themselves on board without the consent of the Master or owner — creates immediate legal, humanitarian, and commercial consequences for the vessel. The Master is personally responsible under UK law and port state requirements for the persons on board. A stowaway discovered at sea does not dissolve that responsibility; it intensifies it.
The same principle underpins smuggling: contraband or persons carried without the Master's knowledge do not exempt the Master from liability. Port state authorities hold the Master accountable for the vessel's manifest and for what is found on board. Ignorance is a partial defence at best and no defence at all if the Master failed to take reasonable precautions.
Prevention: Before Departure
The Master's duty is to establish and maintain a pre-departure search routine. On a yacht this is proportionate to the vessel's size and itinerary, but the principle is absolute:
- Designate responsibility for searching each area of the vessel (crew spaces, lazarette, void spaces, tenders, chain locker).
- Conduct the search close to departure, not hours before — stowing away after a search is a known tactic.
- Record the search in the Official Log Book, noting who conducted it and what was found.
- Control access during port stays: gangway watches, visitor logs, locked spaces.
High-risk ports and regions (migration pressure routes, known smuggling corridors) require heightened vigilance. The Master should brief the crew, increase watch frequency, and consider whether the itinerary warrants additional measures such as CCTV review or working with port security.
Discovery at Sea
On discovery the Master must:
- Secure the stowaway without endangering them — treat with humanity; SOLAS V/33 duty of care applies.
- Notify the owner and flag state without delay.
- Notify the next port of call and coastal state as required — entry with an undocumented person is a matter for immigration authorities and early notification protects the vessel.
- Document everything: identity, discovery circumstances, condition, any statements. This log record is the Master's primary protection.
- Do not disembark the person to a state where they face persecution — non-refoulement obligations exist under international law regardless of the vessel's flag.
The Master has no authority to return a stowaway to a port against their will if doing so would breach international protection obligations; this is a decision requiring flag state and legal advice.
Smuggling
The Master must satisfy themselves — through controlled access, search procedures, and crew conduct — that the vessel is not being used to carry contraband. Crew members colluding in smuggling do not transfer liability away from the Master. Pre-arrival declarations to customs authorities are the Master's responsibility, and a false declaration carries criminal exposure.
A robust gangway and access policy, documented searches, and a culture where crew report suspicions to the Master without fear are the practical tools of command.