Investigators

A ghoul investigator is a specially trained professional under CCG. They are tasked with the investigation and extermination of ghouls to protect the civilians of Tokyo's wards and the rest of humanity from any potential harm that may be caused by ghouls.

EQUIPMENT

Since investigators lack the physical, stamina and strength to handle ghouls in combat so they use tactical, a man-made weapon. Only ghoul investigators are permitted use quinques, the most effective weapons against ghouls which were made from kagune. Additionally, they're sometimes armed with firearms loaded with Q bullets ammunition.

Senior Investigators

Special Class: The highest possible Rank. They are considered the strongest of all Investigators and command operations.
Associate Special Class: The second highest Rank. They also have authority to command operations.
First Class: The lowest Rank to be considered a Senior Investigator. Most Investigator will retire at this Rank, and their responsibilities are to training a Junior partner.

Junior Investigators

Rank 1: The highest Rank for a Junior Investigator, having gained experience but not yet at the peak of their career.
Rank 2: The Rank at which mostly all Investigators begin their career, after graduating from the Ghoul Investigator Training Academy.
Rank 3: Investigators that begin their career at this Rank are "special cases", since they joined without training at the Academy.