masterofgunfu | About the Order of Merciful Aid

The Order of Merciful Aid offers exactly what it promises: merciful aid on the edge of the sword or by the burn of a bullet. Powerful and disciplined, the Order is a nation-wide organization which consists of elite warriors and scholars. Each major city has its own Order Chapter.

Members of the Order are called knights. When asked, the knights state their mission as simply “Protection of mankind.” The knights are lethal, honorable, and unfortunately, convinced that they are always right. Like the Guild, the Order protects humanity against the magic dangers, but unlike the Guild, the Order charges according to income, meaning that if an indigent person petitions the Order for help, the knights will assist him pro bono. The Order has a strange semi-official status and is considered to be a part of the Law and Order triumvirate, which also includes the Military Supernatural Defense Unit (special forces of U.S. Army) and the Paranormal Activity Division (police).

There is much more about the Order and knights here.

From the Kate Daniels wiki.