The invasion of territorial waters is a challenge to state sovereignty. The right of innocent passage in the territorial sea is recognized under certain conditions; however, coastal States assert their executive and legislative jurisdiction outright. I will give a description of the exertion of authority over the invasion of territorial waters and limitations thereof while making an introduction of the powers set forth by the Convention on the Law of the Sea and the rules subjected to domestic legislation.

There seems to be no end to those who smuggle themselves into Japan to work. Since smuggling brokers are systematically involved with most cases, the regulation on such brokers has been tightened up by the revision of the immigration law and the new domestic legislation in Japan in recent years. However, it is impossible to completely destroy such international crime organizations only by domestic regulation, international cooperation with each country is indispensable.

Most of the illegally possessed drugs and firearms in the country are smuggled. Illegal drugs and arms-related crimes and confiscated amounts are burgeoning. Measures against smuggling were introduced and international effort toward its resolution produced results but drugs and firearms, once ashore, become increasingly difficult to seize. A tighter regulatory system has become vital for shutting off the supply as in blocking their intrusion into one's waters.