Project Kraken is a UK-wide campaign which aims to increase vigilance along the coastline and encourage the community to work together to help combat any criminal or terrorist activity.
Inspector David Connery explains: "We're encouraging those living by the coast and members of the maritime community to look out for any suspicious activity and report it to the police immediately so that we can take action if necessary.
"Beaches, marinas and harbours can be uncomplicated points of entry into Northern Ireland and police rely on members of the public to make us aware of anything untoward.
"Please contact police immediately if you find:
Unusual boat movements late at night or early in the morning.
People being landed at unusual locations.
People not knowing about boat handling.
People with inadequate dress for sailing.
Boats moving around at night time with no navigational lighting.
RIBS being loaded / unloaded at unusual times.
RIBS being loaded / unloaded at unusual places.
Packages being transferred out at sea from larger boats.
Packages being transferred to waiting cars.
Strangers acting suspiciously within the marina.
Strangers wanting to hire boats.
Boats with extra fuel tanks.
Boats with above average crew for the size of boat.
"If you notice anything suspicious or unusual please never involve yourself or touch any suspicious packages. Make a note of any registration numbers, markings or descriptions, and call your local police on 0845 600 8000. If the situation requires an emergency response, call 999.
"If someone would prefer to provide information without giving their details, they can contact the independent charity Crimestoppers and speak to them anonymously on 0800 555 111," Inspector Connery added.
Police are also encouraging local boat owners to register their vessels with the PSNI Ports Unit. This means that in the event of a theft, the rightful owners of the boat can be identified more quickly. Forms can be found on www.psni.police.uk or please contact the PSNI Ports Unit on 0845 600 8000.