Black Hunter

The Black Hunter is a highly reviled and hated, but necessary type of Hunter. Known fully as Blacklist Hunters, they are human society's means of checking normal Hunters; in summary, they are Hunters who specifically train to find and kill normal Hunters who have gone rogue or similarly-powered individuals. Numbering in the single digit in each city, the Black Hunters are formed from specially chosen individuals with Auras that are useful in taking down other Aura-using Hunters. Trained to take down their intended targets, they are generally faster, more graceful in style and stronger than normal Hunters and are armed with special weapons that can cleave right through Aura, ruthlessly removing the Hunter's essential protection. Just as a normal Hunter can take down tens of normal soldiers, a Black Hunter is meant to take down tens of normal Hunters.

History
The Black Hunter was conceptualized long before the Great War and their earliest known form was as a Secret Police for the various tyrants, numbering in the thousands and ready to stamp out any resistance backed by an Aura-user. Though their destruction was a long-promised demand of the freedom fighters during the Great War, a Black Hunter leader named Orion Vortigern staged a coup among the Black Hunter ranks, removing members loyal to the tyrants and even overthrowing the rulers themselves from the inside. Biographies of the man cannot decide whether he had done this out of self-gain or actual ideals, but his actions saved the Black Hunters from annihilation, for they still retained control of the defensible tyrants' city, meaning any fight with them would be incredibly costly, even if they themselves would be killed.

Tired of war and willing to avoid more loss, the freedom fighters allowed the Black Hunters to live, though many of them were assimilated into the ranks of normal Hunter, while the truly best were re-purposed and reorganized into a much smaller force dedicated to keeping an eye on the normal Hunters should they ever go out of line.

It was during this tumultuous times after the war, where everything was still in chaos and the freedom fighter leaders were (naturally) fighting among each other for the thrones, that the Black Hunters got most of their bad name. As corruption was revealed throughout the leadership, the Black Hunters were forced to revert into the Secret Police as they were before and were used to hunt down innocent Hunters, most of whom are either a supporter of one leader or the opponent of the other. Disappointed that nothing had changed ten years after the war, Orion Vortigern left the Black Hunters, along with almost two-thirds of the remaining force, crippling the organization and the corrupt that relied upon them. Many more were lynched by enraged Hunters, further depleting their numbers.

By the end of the post-war crisis, the Black Hunter group was a joke compared to its former self, with less than a hundred members, many of whom were new additions in the passing ten years. Left with a horrible reputation and utterly despised, the group has strived since to reform itself into a more regulated and just organization and by the time of RWBY, has managed to root out corruption and do genuine good work for the betterment of the society, though their history has left scars that they will never be able to forget while society, both citizens and Hunters, still views them with total suspicion and sometimes outright hostility. A lack of willing applicants and much reduced funding as their punishment has also further restricted their efforts.

Vale Division
The Black Hunters in the City of Vale are only four in number and three of them are usually entrenched in paper warfare at their hidden HQ, while only one of them is able to perform any field-work in Vale. This severe constraint is why Cinder, a wanted target of the Black Hunters, is able to slip into Beacon Academy unnoticed, with the Vytal Festival soon to make it nearly impossible to keep track of her movements and activities.
 * Notable Members: Lagoon Loptr