Khyber Pakhtunkhwa's police chief Nasir Khan Durrani on Thursday relinquished charge as the inspector general of police after serving at the post for more than three years.
Durrani assumed the office of inspector general in 2013. His appointment came a day after twin blasts at a church in Peshawar which killed left 81 people and injured more than 100.
The former police chief is most noted for taking strict action against officers accused of negligence in their duties, including Deputy Superintendents of Police (DSPs) and acting Superintendents of Police (SPs), who were removed from service on account of misconduct.
According to a document DawnNews had obtained in September 2015, some 4,934 police officials were either removed from service or awarded other punishments on disciplinary grounds.
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Durrani also introduced a Police Access System to address public complaints within the shortest possible time. He also introduced the I-Call system, establishing a round-the-clock direct link between himself and the public.
Additional Inspector General Syed Akhtar Ali Shah is the acting IGP until an official announcement is made.