From 1954, the Immigration Division became a Civilian Department within the Government Service. Previous to this, the Police Service handled the functions of the Immigration Division, with the Commissioner of Police being the Chief Immigration Officer. From 1954 to present, civilians have held the position of Chief Immigration Officer and all other ranks. The previous Immigration Restriction Ordinance Chapter 20:No. 2 came into effect from 2nd June 1936 and was the operative legislation up to 30th June 1976.
The Immigration Restriction Ordinance was replaced by the current Immigration Act Chapter 18:01 which took effect from 1st July 1976. Apart from this legislation, Immigration operates the Citizenship Act Chapter 1:50 which came into effect 31st July 1976 and Chapter 2 of the current Constitution, Chapter 1:01 which came into effect 1st August 1976 and which replaced the previous Constitution Order in Council 1962 which was effective from 31st August 1962. The Division also operates the current Immigration Caribbean Community Skilled Nationals Act 26/96 which came into effect 10th August 2001.