The National Accountability Bureau is Pakistan's apex anti-corruption organization. It is charged with the responsibility of elimination of corruption through a holistic approach of awareness, prevention and enforcement. It operates under the National Accountability Ordinance-1999. With its headquarter at Islamabad, it has four regional offices in the provincial capitals and one at Rawalpindi. It takes cognizance of all offences falling within the National Accountability Ordinance (NAO). For the initial three years, the focus of its functions was directed only at detection, investigation and prosecution of white-collar crime. Those prosecuted include politicians, public service officials and other citizens who were either guilty of gross abuse of powers, or through corruption had deprived the national exchequer of millions or resorted to other corrupt practices. In February 2002, NAB launched the National Anticorruption Strategy (NACS) project. The NACS team conducted broad based surveys, studied external models of international anti-corruption agencies and involved local stakeholder. All pillars of National Integrity System were studied in detail. After identifying the causes of corruption in each pillar, a comprehensive strategy and a detail action plan was recommended. Breaking away from traditional enforcement based routines NACS has recommended a comprehensive process. Relevant amendments have been made in NAO and now NAB is empowered to undertake prevention and awareness in addition to its enforcement functions.