Is there any law that prohibits a naval officer from wearing uniform in witness box as shown in Rustom?

In the context of U.S. Navy and Marine Corps regulations, there are specific rules governing the wear of uniforms, but these do not explicitly address the scenario of a naval officer wearing their uniform while testifying as a witness in a civilian court.

However, here are some relevant points:

Court-Martial Settings

In a court-martial, which is a military judicial proceeding, the Uniform Rules of Practice specify that the accused and other participants, including witnesses, must adhere to certain uniform standards. For example, the accused must wear the insignia of their grade and any decorations, emblems, or ribbons they are entitled to14.

Civilian Courts

For civilian courts, the regulations do not apply directly. There is no law or regulation that prohibits a naval officer from wearing their uniform while testifying as a witness in a civilian court, but it is generally considered inappropriate unless specifically authorized or relevant to the case.

General Uniform Regulations

The U.S. Navy's uniform regulations do prohibit wearing uniforms in certain contexts, such as during political activities, private employment, or commercial interests that imply official sponsorship. However, these regulations do not specifically address testifying in a civilian court3.

In summary, while there are strict rules for wearing uniforms in military settings, there is no specific law or regulation that prohibits a naval officer from wearing their uniform while testifying in a civilian court, provided it does not violate other applicable regulations or norms.