Following the September 11 terror attacks the Commonwealth Government conducted a review of counter terrorism arrangements. As a result it was decided to combine the Australian Federal Police (AFP) and the APS in order to ensure the closest possible co-ordination between two of Australia's key counter terrorist agencies. The Australian Protective Service Amendment Bill 2002 was introduced into Parliament with the intention of making the Australian Protective Service (APS) an operating division of the Australian Federal Police (AFP). The merger occurred on 1 July 2004 when the Australian Protective Service, with 1327 employees, became an operating division of AFP.