The Adeptus Arbites are also known as Imperial Judges, or commonly among the inhabitants of Necromunda as judges. Every Hive on Necromunda is divided into precincts, each with it's own fortified courthoouse and substantial number of Judges. Necromunda is a vital planet to the Imperium, but population pressures mean that this is in constant danger of devolving into anarchy and civil war. The Judges maintain a constant vigilance for signs of disloyalty and subversion form Spire to Underhive. Their duty is to uphold the law of the Imperium and they are not subject to Lord Helmawr's authority, indeed, he is the subject of their closest scrutiny. The Imperium is an organisation where rebellion and defiance of the Imperial will are classed as crimes against humanity.