After meeting qualifications for being a
judge, Mulk was ascended as judge at the
Peshawar High Court on 6 June 1994—a post he retained until 2004. Justice Mulk presided and heard the
Mukhtār Mā'ī case—the controversial and highly publicized case regarded a
gang rape that occurred in 2002. Mulk's judgement held
Jirga, facilitated by four male, responsible for the rape while assisted the main accused but didn't find sufficient evidence to stamp the charge of gang-rape on the accused. Reviewing the application, a seven-panel bench in Supreme Court of Pakistan issued an
injunction against the imposition of
state emergency on 3 November 2007. The outgoing
Chief Justice Tassaduq Hussain Jillani had laid down the
judicial robes of his office on and handed over to Chief Justice Mulk. Mulk is described by his fellow judges as "a very proactive judge and is very strict about the implementation of law in its letter and spirit." Mulk is also known for his strictness towards implementation of law and his judgement reflected a
textualist approach on
human rights and non-discrimination issues. He retired as
Chief Justice of Pakistan on 16 July 2015 and was succeeded by
Jawad S Khwaja. == As caretaker prime minister ==