Fushin-sen

[3] There are incidents of fushin-sen being involved in the smuggling of agents, illegal immigrants, and drugs, as well as the abduction and trafficking of Japanese people.

criminal activity such as organized crime and front companies are suspected of using fushin-sen to supply drugs to the Yakuza, who already have connections with North Korean agents and institutions.

Operatives smuggled into Japan by seacraft are usually concealed and blend in as members of society, while they gather intelligence or carry out orders.

[4] Since 1999, the Japanese police and Coast Guard are actively working to educate civilians about the fushin-sen issue and the dangers they pose to public safety.

The vessel was tracked by an airplane of the Japanese Maritime Defense Force which fired an illuminating shell as the kidnappers brought Kim (with weights attached to him) on deck, apparently intending to drown him.

The craft ship was missed, but this incident triggered the realization of hull shooting and the maintenance of patrol boats due to the revision of the Japan Coast Guard Law, as well as the formation of the Maritime Self-Defense Force's Special Boarding Unit and on-site inspection team with escort vessels.

In 2003, Japan raised the hull in order to identify the vessel and determined that it was a North Korean spy ship.

Example of a fushin-sen: A North Korean ship exhibited at the Museum of Maritime Science. View from the stern (photographed in September 2003)
Anti-aircraft cannons from the Battle of Amami-Ōshima fushin-sen. Having heavy anti-aircraft and/or anti-tank weapons aboard is one of the signs of a fushin-sen type of ship.
The ship used by North Koreans during Amami-Ōshima exhibited in the Yokohama marine disaster prevention base.