China's sea surveillance and fishery administration are mainly responsible for some things. Are there any heavy weapons on board?

China Tour: It belongs to the State Oceanic Administration.

The main functions of China Maritime Supervision Corps are to conduct cruise surveillance on the sea areas under the jurisdiction of China (including the coastal areas) according to relevant laws and regulations, investigate and deal with violations of laws and regulations, such as infringement of maritime rights and interests, illegal use of sea areas, destruction of marine environment and resources, destruction of offshore facilities, and disruption of maritime order, and carry out other maritime law enforcement work according to entrustment or authorization.

China Fishery Administration: It belongs to the Ministry of Agriculture.

The main function is to implement fishery law enforcement management according to national laws and regulations, protect fishery resources and their water environment, safeguard the legitimate rights and interests of fishermen and promote the sustainable development of fisheries; Exercising fishery administration and fishing port supervision and management power on behalf of People's Republic of China (PRC), and safeguarding national marine and fishery rights and interests.

Fishery vessels generally carry light weapons to deal with the threat of violence or resist fishery inspection, as well as advanced and complete navigation equipment, long-distance photography, video recording and recording equipment, as well as special instruments, equipment and tools for measuring water quality, checking fishing gear and recording the accurate position and trajectory of illegal fishing vessels. Performing tasks at night requires flares and high-power searchlights. Large and medium-sized fishery vessels are equipped with radio stations, radars, radio direction finders, acoustic detectors, scanning sonar, satellite navigation and communication equipment. Some ships are also equipped with high-speed boats and helicopters.

China's sea surveillance ship is unarmed, and at most it takes some armed police forces aboard. Japan's sea surveillance ship is armed, like a 30 mm fast gun, which can carry helicopters and has more than 3,000 tons. It seems that all countries' sea surveillance ships are armed, but most of them are equipped with small-caliber weapons, and there are few offensive weapons such as large-caliber naval guns, which should be regarded as police. Moreover, when there is a conflict at sea, collision is generally the means of attack and weapons will not be used. So it is not very important to equip weapons. The key is tonnage. The bigger and faster, the more flexible the steering, the better.