The shoulder patch of the Air Force Office of Special Investigations.

The unform patch of the U.S. Air Force (USAF) Office of Special Investigations (OSI) features the organization’s emblem, unchanged since its inception in 1955. A light blue shield symbolizes the sky, the primary theater dominating all air activities. Inside, the winged USAF blue sphere indicates OSI’s air mission is worldwide. Spreading wings imply protection of all qualities of virtue underlying the rights of free people. Upright swords symbolize the power of law and order and military justice. At the top, a lamp symbolizes light and learning.