The problem discussed in this research was law enforcement against violations of
the right of passage in the Indonesian archipelago sea lanes, especially those
carried out by ships from countries that have not the 1982 UNCLOS Indonesia
cannot impose sanctions because until now there has been no law regulating this
matter. This thesis uses a normative research method where the data sources are
collected through literature study and interviews with resource persons. The
analysis used is the deductive method analysis. From the results of the analysis it
can be concluded that Indonesia can suspend foreign ships from countries that have
violated the right of passage in the sea lanes of the Indonesian archipelago based
on Indonesian national law and general principles of law which are considered as
customary international law.