Palanite Enforcers
The Palanite Enforcers are the local law enforcement agency on the Hive World of Necromunda and a playable faction within the game.
They aren't the galaxy spanning agency of the Adeptus Arbites: Where the Adeptus Arbites are recruited from the Schola Progenium and other high minded institutions and expected uphold Imperial Law to the highest standard. The Palanite Enforcers act as Lord Helmwar's personal army, and enforce the will of the Imperial House. They are given wide remits to perform their duties and are provided access to the finest weapons and ordnance that House Helmwar can afford.
Organisation
Recruitment
Enforcers are selected from individuals within the Hive population who demonstrate particular strength of will and initiative, often from those who were once criminals or rebels themselves.
Such individuals are gathered up, sometimes forcibly, and subjected to a grueling regime of training intended to strip the candidate of all sense of self; even forgetting their own names. They are subjected to this regimen over and over again until the trooper that comes out the other side is harder than anything they can encounter within the depths of the underhive, or they do not recover from breaking point and are discarded.
Successful candidates are given new names and assigned to positions far away from the place from their initial recruitment to limit any connections they might have had with their old lives. Instead they come to treat their new squadmates as family, but are encouraged to continually police themselves and eradicating any weak links within their own chain of command.
Hierarchy
The lowest official rank is simply Patrolman, though rookies are afforded even lower status and not trusted with specialised equipment until they have proven themselves with time spent in the field. Patrolmen and Patrolwomen may eventually develop into more specific roles like Sniper or Counter-Insurgence as they gain experience and progress in training. The most prevalent specialisation is Subjugator, who are heavy enforcement troopers (basically the riot squad) that are equipped with heavier flak armour and get deployed in response to excessive instances of gang violence.
The smallest organisational unit is called a Squad contains half a dozen patrolmen and is led by a Palanite-Sergeant or Subjugator-Sergeant depending on their squad's particular role. Additionally, there are other specialists who technically hold rank equivalent to sergeants, notably the Haunts, who are dedicated psyker hunters.
Any number of Squads are gathered into the next organisational unit called a Patrol, commanded by a Palanite Captain or Subjugator Captain, though other individuals hold equivalent rank to Captains such as Scrutinators (presumably forensic specialists) and Proclamators (maybe lawyers or negotiators). Captains are often given the autonomy to command in any way they seem fit, so there is no fixed arrangement of squads and can be equipped and assigned based on whatever the Captain decides he requires.
Above Captains are the Proctors, who don't see tabletop field duty and instead oversee command of the Precinct Fortresses within a hive sector.