What happens if a U.S. service member commits a crime in Japan?

A U.S. service member who commits a crime in Japan is indeed subject to a dual system of accountability. Under the provisions of the Okinawa Status of Forces Agreement (SOFA), service members can face consequences not only under U.S. military regulations but also under Japanese law depending on the nature of the crime.

If the offense is one that falls under the jurisdiction of Japanese authorities, then the service member may be prosecuted under Japanese law. However, certain offenses might only be addressed within the military justice system. This means a service member could find themselves facing disciplinary action from their commander or military court, as well as additional penalties imposed by the Japanese legal system, if applicable. This system of accountability highlights the unique legal framework governing U.S. forces stationed in Japan.

The other choices either simplify the legal nuances or misrepresent the realities of the legal responsibilities that U.S. service members have while stationed in Japan. Therefore, the correct answer accurately reflects the comprehensive nature of legal accountability service members face in this context.