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"The fires through which we pass in this life are but the light of the Emperor's forge. Our triumphs and tragedies are the heat by which we are tempered into weapons fit for his service."
— Commissar Captain Jourian Al'Eutar, Gunmetallicus 41st

A female Commissar armed with a Bolt Pistol and Power Fist

The Commissariat, also known as the Officio Prefectus, is a subdivision of the Departmento Munitorum, whose task is to ensure the recruitment, training and deployment of the corps of Imperial Guard political officers tasked with keeping the troops of the Imperial Guard on mission and under intense discipline, even in the face of some of the most terrifying threats in the galaxy. The Imperial Guard is exposed on a regular basis to terrible threats which can shake the resolve of even the most steel-hearted veteran, from bizarre aliens to the terrifying inhabitants of the Warp. To encourage the men to fight the most horrendous of situations, political officers called Commissars are attached to regiments of the Imperial Guard. The role of a Commissar is to fight alongside the Regiment’s regular officers and take control when morale is flagging or the men are not fighting with sufficient zeal. In such situations a Commissar can take over command from a regular officer and summarily execute any man who tries to flee. Even the colonel of a Regiment must be sure to display courage and the proper zeal at all times when a Commissar is watching him.

Commissars are orphans of parents who were killed serving the Imperium in one of the other Imperial military forces or Adepta who were educated within the Ecclesiarchy’s special orphanage schools, the Schola Progenium, and selected from among those who show fearless faith in their Emperor. Upon reaching adolescence, they are recruited by the Commissariat and given advanced training in combat tactics and human psychology. Once ready, they are then assigned by the Commissariat to Imperial Guard regiments whether the regiment in question likes it or not. Commissars are pious, oft times self-righteous and unswerving in their purpose. They are exceptionally brave and many a seemingly hopeless battle has been turned by a Commissar taking command. However, all Commissars are universally feared and loathed by the men of the Imperial Guard and are always the first officers against the wall when a Regiment mutinies.


"What is the self compared to the God-Emperor's service?"
— Commissar Abdelus XXII
Discipline Master

Imperial Army Discipline Master during the Great Crusade, the position which later evolved into the Commissar

The Imperial Army of the Great Crusade was organised from the fighting men of the worlds liberated by the Space Marine Legions of the Emperor of Mankind. They were used almost exclusively for garrison and pacification roles on both their home and foreign worlds throughout the early stages of the Crusade, but by the latter half, they were fighting offensive battles and supplementing the Space Marine Legions as they began to be stretched thinner. The Imperial Army was organized with no particular standardization, and regimental makeups ranged from barbarians wielding Power Axes to advanced mechanized infantry armed with energy weapons whose designs have now been lost. During this time, the regiments were left almost exclusively to their own recognisance as long as they served faithfully, and conformed to the few restrictions placed on them.

During the Great Crusade, some Imperial Army regiments utilised specialists known as Discipline Masters. These stern task masters were responsible for maintaining discipline within the regiment to which they were assigned. They were also responsible for tracking down Imperial Army deserters that repudiated their oaths to the Emperor and shirked their soldierly responsibilities. They were known to use hunting eagles to help them track their prey. Their fanatical dedication to the service of the Emperor overrode any feelings of compassion, mercy or humanity when carrying out the summary executions of those found wanting, for which they employed a ceremonial Electro-scythe. The Discipline Masters served as the pre-cursor and model for the later Commissariat and its merciless Commissars.

During the Horus Heresy, an estimated 40-50% of the Imperial Army turned on the Emperor and joined Warmaster Horus to make war on the Imperium. Most of these Traitor Army Regiments eventually broke down into feudal and fragmented Chaos Cults, worshiping the various Gods of Chaos, and causing great havoc amongst the civilian populations of millions of worlds. With the added range of their Regimental Cruisers, the Traitor Army units spread quickly and left a bloody swathe of depopulated and dead worlds in their wake, many of which had once been their own responsibilities or even their homeworlds. It is suspected that a number of Traitor Army Regiments were used in the Battle of Terra, though the exact extent of the Traitor forces has never been properly calculated, and most Chaos-tainted Imperial Army and Guard Regiments became indistinguishable from each other.

With Horus' defeat, and the retreat of the Forces of Chaos to the Eye of Terror, the remaining Loyalist Regiments of the Imperial Army underwent massive changes, and became heavily standardised. The Imperial Navy was separated from the Imperial Army and transformed into a separate service, whilst the Imperial Army's ground forces were renamed the Imperial Guard. During this time, the Commissariat was formed to be the Imperium's bulwark among the members of the Imperial Guard against the influence of Chaos. The Commissar was given power to ensure his or her regiment's continuing loyalty, and was charged to do anything necessary to prevent the corruption or spread of Chaos among the Guardsmen of that unit. Commissars were attached to every regiment, and were used extensively in the immediate wake of the Traitor forces' retreat to ensure that the population of planets that had been ravaged by Chaos were not subverted by Chaos splinter cells or sleeper Chaos Cults. Before the Imperium was re-forged, millions of people would be executed by the Commissariat as Traitors or heretics. Eventually, this role was given to the Imperial Inquisition and its Ordo Hereticus and Ordo Malleus.

Over the last 10,000 years, the Commissariat has remained an important facet of the Imperial Guard's command structure, and it is rare not to see at least one Commissar attached to the command staff of a Regimental Officer or Lord Commander's staff. Several Commissars have even attained Imperial commands of their own, including the Commissar Yarrick, who took command of the Steel Legionnaires of Hades Hive during the Second War for Armageddon, and became overall commander of Imperial forces during the Third War for Armageddon. The only known Commissars to have held and retained overall command of a full regiment included Commissar Ibram Gaunt, who became the only known Colonel-Commissar of the orphaned Tanith 1st Regiment, after receiving command of the Tanith 1st, 2nd and 3rd Regiments from Warmaster Slaydo during the Sabbat Worlds Crusade, and losing the 2nd and 3rd when Tanith fell to Chaos. Commissar-General Delane Oktar also commanded the Hyrkan 8th Regiment and was Gaunt's personal tutor.  Also, a ruthless individual named Lady Commissar-General Viktoria Balshin was charged with purging the perceived taint of Chaos from the Second Front of the Sabbat Worlds Crusade.

Local CommissariatsEdit

Within the Imperial military, some Planetary Defence Forces and individual sectors or sub-sectors of the Imperium possess their own Commissariat who maintain authority over the local military forces in their region of the galaxy. These organisations are empowered with all the usual right and duties of the Imperial Commissariat, but are subordinate to the parent organisation, and possess fewer powers over regular Imperial Guardsmen. Nevertheless, in the past, this has caused friction between local planetary Commissariats and the official Imperial Commissariat due to jurisdictional concerns, and has even been known to result in Imperial Commissars executing their local planetary counterparts for overstepping their authority.

  • Chaliced Commissariat - The Chaliced Commissariat is the local Commissariat found within the Calixis Sector and based on the sector capital world of Scintilla. This special military unit is a direct political and military extension of Lord Sector Marius Hax's will and was created to maintain direct control over locally-raised regiments and Planetary Defence Forces (PDF). Feared and hated in equal measure across the sector, the mere sight of the laurel-wreathed chalice badge and deep red rank insignia are enough cause for a defence trooper to blanch and consider whether their life has come to an end. This organisation was primarily created to monitor for corruption within local PDF units as well ferreting out the possibility of an organised and armed secession on the part of a local Planetary Governor that is supported by PDF units. The Lord Marshal of the Calixian Adeptus Arbites has made no secret of his dislike for Hax's "specially selected scum," seeing them as bordering on being an unlawful agency, and therefore one step away from an instrument of rebellion themselves.
  • Vervun Primary Commissariat (VHPC) - The Vervun Primary Commissariat (VHPC) is the local Commissariat found  upon the Hive World of Verghast within the Sabbat Worlds Sector. This local Commissariat is empowered with all the usual rights and authority of the official Imperial Commissariat, and was also rumoured to be used by the ruling mercantile nobility of Vervunhive as a form of secret police force. The VHPC was commanded by a full Imperial Commissar, assigned the role of watching over both the Vervun Primary Imperial Guard forces and the VHPC. This local Commissariat was theoretically subordinate to its parent organisation and possessed fewer powers over regular Imperial Guardsmen, but jurisdictional concerns arose during the Defence of Vervunhive in the midst of the Sabbat Worlds Crusade.


  • Codex: Imperial Guard (5th Edition), pp. 32, 63
  • Codex: Imperial Guard (4th Edition), pp. 41, 52-53
  • Codex: Imperial Guard (3rd Edition, 1st Codex), pp. 6, 13
  • Codex: Imperial Guard (2nd Edition) pp. 20, 78, 84
  • Codex Imperialis
  • Dark Heresy: Core Rulebook (RPG), pg. 260
  • Dark Heresy: The Inquisitor's Handbook, pp. 18, 60-61
  • Final Liberation: Warhammer Epic 40,000
  • Horus Heresy: Collected Visions, pg. 121
  • Warhammer 40,000 Compendium (1st Edition), pg. 151
  • Warhammer 40,000: Rulebook (3rd Edition), pg. 7
  • White Dwarf 248 (US), "In Defence of Armageddon"
  • White Dwarf 227 (US), "Chapter Approved - Imperial Guard, Commissar Yarrick"
  • White Dwarf 152 (US), "Commissar Yarrick and Warlord Ghazghkull Mag Uruk Thraka", pp. 14-22
  • White Dwarf 115 (UK), "Commissar Training Squads"
  • White Dwarf 113 (UK), "The Pacification of Flotis III"
  • First and Only (Novel) by Dan Abnett
  • Necropolis (Novel) by Dan Abnett
  • Honour Guard (Novel) by Dan Abnett
  • Rebel Winter (Novel) by Sandy Michell
  • For the Emperor (Novel) by Sandy Mitchell
  • The Traitor's Hand (Novel) by Sandy Mitchell
  • Death or Glory (Novel) - Ciaphas Cain: Defender of the Imperium (Omnibus) by Sandy Mitchell
  • Duty Calls (Novel) - Ciaphas Cain: Defender of the Imperium (Omnibus) by Sandy Mitchell
  • Dawn of War - Dark Crusade (PC Game)
  • Dawn of War II - Retribution (PC Game)


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