Where there are clear grounds for believing that a vessel navigating in the territorial sea of a State has, during its passage therein, violated laws and regulations of that State adopted in accordance with this Convention or applicable international rules and standards for the prevention, reduction and control of pollution from vessels, that State, without prejudice to the application of the relevant provisions of part II, Section 3, may undertake physical inspection of the vessel relating to the violation and may, where the evidence so warrants, institute proceedings, including detention of the vessel, in accordance with its laws, subject to the provisions of Section 7.
Kadar ima država tehtne razloge, da verjame, da je ladja, ki plove v njenem teritorialnem morju, prekršila med prehodom skozi to morje njene zakone in predpise, sprejete v skladu s to konvencijo, ali ustrezna mednarodna pravila in standarde za preprečevanje, zmanjšanje in nadziranje onesnaževanja z ladij, lahko ta država v zvezi s kršitvijo, ne da bi to posegalo v ustrezne določbe poglavja 3 dela II, pregleda ladjo, in če dokazi to opravičujejo, lahko začne v skladu s svojo zakonodajo in ob upoštevanju določb poglavja 7 postopek, vštevši zadržanje ladje.