The Military Police Regimental Distinctive Insignia, sometimes called a unit crest, is rendered almost entirely in green and yellow, traditional branch colors since 1922. It is crowned by two crossed pistols, symbolizing the branch’s combat services, just above a shield containing a fasces, scales of justice, and a crossed key and sword. Fasces are a frequent heraldic item employed by Military Police units for their insignia; their use a symbol of magisterial authority dates back to the time of the Roman Empire. The crossed key and sword is symbolic of the power of detention and freedom held by Military Police units, while the scales of justice are reminder that MP personnel are always to follow the rules of law and justice to fulfill the Regiment's motto: "ASSIST PROTECT DEFEND."
Regimental Distinctive Insignia (RDI)are worn by personnel when the unit in which they are serving does not have a Distinctive Unit Insignia. However, it may also be worn by personnel whose units have been authorized a Distinctive Unit Insignia, or unit crest. According to DA Pamphlet 670-1, “Soldiers may wear the RDI for their affiliated regiment or may wear the DUI for a unit in which they are serving or have previously successfully served based off their assignment history as indicated in their personnel record.”
The Military Police Regimental unit crest was approved in 1986 and is classified as a “whole-corps” RDI.