That's the Special Investigation Branch.

Jones became the head of the Special Intelligence Bureau and led the Investigation Branch.

He worked as a railway clerk before doing his National Service in the RAF as a photographer attached to the Special Investigation Branch.

Special Investigation Branch, the detective branches of all three British military police arms.

One of the earliest instances of this type of combined operation between the cutters and our Investigation Branch involved Venturous with Phil Andrews in command.

A detachment of the Special Investigation Branch of the Royal Air Force was given the assignment of tracking down the killers of the 50 officers.

The Special Investigation Branch is dedicated to investigating more serious crime.

Special Investigation Branch obtained the following statement from XYZ.

Following an investigation by the Special Investigation Branch of the Royal Military Police, he was cleared of any wrongdoing.

The Companies Investigation Branch (CIB) investigates limited companies and limited liability partnerships.