as deputy commissioner of Montgomery and Sialkot. In 1952, he joined the Ministry of Defence (MoD) as its deputy secretary until 1954 when he left for the United Kingdom to attend the Imperial Defence College in London. In 1956, he earned the degree and secured his graduation from the Imperial Defence College and subsequently returned to Pakistan. He was appointed as joint secretary in MoD but later moved to Ministry of Law and Justice (MoLJ) to pursue career as federal judge. Supreme court and chief justice In 1957, he was elevated as district-session judge in Sindh High Court but later moved to Lahore High Court in Punjab in 1958. In 1959, he was appointed as a judge in the West Pakistan High Court and moved on to the Supreme Court as a senior justice in 1962. In 1965, he was appointed as the deputy leader of the Pakistan Delegation to the Third Commonwealth and Empire Law Conference held at Sydney, Australia in 1965. In 1967, he was appointed as a member of the Law Reform Commission led by Chief Justice Alvin Robert Cornelius that conducted the various case studies on land reforms in Pakistan. In 1969, he was selected to lead a Legal Expert Delegation to Somalia to provide expertise in overviewing the constitutional crises in Somalia. In 1970, he was elevated as Chief Justice of the Lahore High Court by President Yahya Khan who issued the decree, the LFO No. 1970 that dissolved the status of West Pakistan. He witnessed the war between India and Pakistan that resulted in the separation of East Pakistan as Bangladesh. On 26 December 1971, he was named as a member of the War Enquiry Commission (WEC) along with Chief Justice Hamoodur Rahman, and the chief justices of the Sindh, Balochistan, and Punjab High Court, formed by the Chief Justice Rahman on the request of then-President Zulfikar Ali Bhutto. On 1 January 1972, he was re-elevated as the senior justice at the Supreme Court. Haq attended the Third Commonwealth and Empire Law Conference in Sydney, Australia in August–September 1965 as leader of the Pakistan delegation. He was interested in academic and educational activities and had been a member of the Syndicates of: Punjab University University of Engineering and Technology, Lahore University of Agriculture, Faisalabad in Lyallpur (now called Faisalabad) Allama Iqbal Open University, Islamabad Haq was President of the Himayat-i-Islam Law College, Lahore for