Bureau of Investigating Ghouls

The Bureau of Investigating Ghouls or simply BIG, is a federal bureau tasked with the sole purpose of exterminating all Ghouls present within the United Kingdom. Through the Ghoul Countermeasures Law, the BIG is able to openly prosecute and execute Ghouls so long as they are identified as such before passing judgement. The BIG's current headquarters is located in the First Ward, where it is currently headed by Chairman Charles Castle.

Ghoul Investigators are colloquially known as "Knights" because of the emblem they possess that is emblazoned with a knight's helmet.

History
The BIG was originally found in 1886 by the United Kingdoms' government in response to the increase of Ghoul activity and crimes within the United Kingdom. Initially, it proved ineffective to fight Ghouls because of how inefficent Q Bullets were. However, there was a breakthrough in 1956 when Quinque were invented by Kazuo Washuu. This revolutionized the way ghouls were hunted, effectively raising their extermination rate to new highs.