Isa bin Salman Al Khalifa
Before 2002, the NSA was organized as the 'General Directorate for State Security Investigations' (), also known as 'Security and Intelligence Service'. It was headed by Ian Henderson from 1966 to 1998. After Henderson retired in 1998, the position was taken by Khalid bin Mohammed Al Khalifa, a nephew of the then-ruler Isa bin Salman Al Khalifa.