The intelligence Bureau the short name is IB is a civilian department of Pakistan. The supervisor of this department is Priminister Of Pakistan. IB established in 1947 after Indo Pak division. Before division Intelligence Bureau was the part of British Raj's which was established by the British Army. The first IB office in Pakistan was in Karachi after independence. IB is the oldest intelligence community and the second one is MI of Pakistan. In the start, IB was the only source to check and balance in Pakistan.
Pakistan's Prime Minister is authorized to appoint the Director General of IB, but President of Pakistan only can confirm the appointment. Because this is a civilian Intelligence agency so its DG have been appointed from civilians (Police department); as well as retired military officials have also served as DG IB.
Intelligence Bureau's headquarter now situated in Islamabad, Pakistan and it works under Federal Government of Pakistan.