Abdul Qadeer Khan (Urdu: ڈاکٹر عبد القدیر خان; b. 1 April 1936); ; also respectfully known in Pakistan as Mohsin-e-Pakistan (in Urdu: محسن پاکِستان; lit: Savior of Pakistan), more popularly known as Dr. A. Q. Khan, is a Pakistani nuclear scientist and a metallurgical engineer, colloquially regarded as the founder of HEU based Gas-centrifuge uranium enrichment programme for Pakistan's integrated atomic bomb project. Founded and established the Kahuta Research Laboratories (KRL) in 1976, he was both its senior scientist and the director-general until his retirement in 2001, and was an early and vital figure in other science projects. Apart from participating in atomic bomb project, he made major contributions in molecular morphology, physical martensite, and its integrated applications in condensed and material physics.
Abdul Qadeer Khan was one of Pakistan's top scientists, and was involved in the country's various scientific programmes until his debriefing. In January 2004, Khan was officially summoned for a debriefing on his suspicious activities in other countries after the United States provided evidences to the Pakistan Government, and confessed it a month later. However, it has been alleged that these activities were government sanction, though the Pakistan government sharply dismissed the claims. After years of debriefing, the Islamabad High Court (IHC) on 6 February 2009 declared Abdul Qadeer Khan to be a free citizen of Pakistan, allowing him free movement inside the country. The verdict was rendered by Chief Justice Sardar Muhammad Aslam. In September 2009, expressing concerns over the Islamabad High Court's decision to end all security restrictions on Khan, the United States warned that Khan still remains a "serious proliferation risk".
Read more about Abdul Qadeer Khan: Early Life, Research in Europe, 1971 War and Return To Pakistan, Proliferation of URENCO Technology, Expansion of Network, Government Work and Political Advocacy, Legacy