A Silver color metal and enamel device 1 1/8 inches (2.86 cm) in width overall blazoned as follows: Per fesse embattled, the chief per pale Tenn and Celeste, the base Azure all edged Argent, in dexter chief a cock to sinister of the like, eyed, crested and langued of the field, in sinister chief a dragon rampant also Argent, eyed and langued of the first; issuant from base a double-bladed axe Silver Gray, between the blades a billet bendy Argent and Azure. Enclosed by a Dark Blue motto scroll bipartite at the bottom inscribed "ONE TEAM, ONE FIGHT" in Silver.
Dark blue is the color traditionally used by the Infantry units. The cock on the orange field represents the Signal element of the Battalion. The blue field is the color traditionally used by Military Intelligence. The dragon on the blue field alludes to the Military Intelligence component of the unit. The embattlement highlights the engineers of the former 3rd Infantry Division Engineer Brigade from which the Special Troops Battalion was formed, while the four turrets upon the embattlements represent the association with the 4th Brigade. The doubled-bladed battle axe signifies the military police functions to conduct security operations to provide law and order and process Enemy Prisoners of War/civilian internees. The billet symbolizes the 3rd Infantry Division Marne patch, the parent organization.
The distinctive unit insignia was approved on 14 September 2005.