There are differences between the duties and responsibilities of a security officer working at a shopping centre and that of a maritime security guard working at a security regulated port, a security regulated offshore facility or on-board a security regulated ship.
MSGs may perform a range of security roles including:
Controlling embarkation/disembarkation of people, baggage and cargo onto a security regulated ship;
Monitoring of maritime security zones;
Provision of security services including patrols;
Supervision of cargo and ship stores;
Checking of documentation (including identity documents); and
Monitoring of closed circuit television.