The Chicago Police Department is the principal law enforcement agency of the City of Chicago, Illinois, in the United States of America.
A division of it is Special Investigations.
Special Investigations are a division of the Chicago Police Department. It is appointed to all cases in which something unexplainable or supernatural is involved.
Black Cat Department
The Black Cat Department was a department of the Chicago Police Department that handled unexplainable and unwanted cases prior to SI.
Known members were: Collin "Jack" Murphy.