Integrated Investigation Bureau

The Integrated Investigation Bureau, or IIB, is a fictional law-enforcement agency featured in the Canadian television series The Listener. It first appeared in the premiere episode of season two, "Lady in the Lake".

The Integrated Investigation Bureau is a special detachment of the Royal Canadian Mounted Police and is based out of Toronto, Ontario, Canada. There is a secondary IIB headquarters based out of Vancouver, British Colombia.

They specialize in cases that the regular police either refuse or are ill-equipped to handle. They deal with matters such as companies dealing under the table, weapons dealers, intelligence leaks, etc.

The IIB building itself houses floors of offices, with the central IIB force on one floor. It also has an interrogation room with a one way mirror so people can monitor questioning sessions. A special team was created by Alvin Klein to solve the cases that were thought impossible. Alvin Klein eventually stepped down and Brian Becker took his place as leader of the group.