In naturalization procedure, there are many laws you have to consider.
The most important among these is Japanese Constitution, but you can list other laws such as;
Family Registration Law
International Private Law
Immigration Control and Refugee Recognition Act
Civil Law Act
Resident Register System Law
Income Tax Law
Bills of Exchange Law
Law Regulating Adult Entertainment Businesses
Stimulant Control Act
You can probably imagine Nationality Law, International Private Law and Immigration Control and Refugee Recognition Act as laws that connect with naturalization procedure, to some extent.
Other laws are used when checking if you meet the conditions of naturalization.
Solicitor & Immigration Lawyer
If you want to ask something, please contact from this page.