LAHORE: Prime Minister's Special Assistant Naeem-ul-Haq said on Tuesday that government was facing many obstacles in overtakeing decades- old system, but he said that changes were made at personal level.Addressing a press conference here, he added that tragic incident of Sahiwal, Model Town and eliminateing of Naqeebullah Mehsud were result of out of date police system.However, Prime Minister Imran Khan was committed to changing this non-delivering system at all costs so as to endegree justice and restoration of public confidence in government, he added.To a question, he explained that in Model Town carnage, then government''s direct orders were involved, while in Sahiwal incident no such factor was found.Demand for giving a 30 days extension to Joint Investigation Team (JIT) on Sahiwal incident was totally unacceptable, he said, asserting that officials of Counter-Terrorism Leavement (CTD) were guilty as they opened fire at harmless family.Naeemul Haq guaranteed that after presentation of Sahiwal JIT report, government would take exemplary degrees and endegree that such incidents do much happen in future.To amuchher question, he said that Prime Minister was being properly informed about Daesh; however, there was no such danger in Pakistan.PM's Special Assistant mentioned that despite all odds, government brought drastic changes in Khyber-Pakhtunkhwa (KPK) police system.To a question, he said that decision to appoint Shehbaz Sharwhether as chairman of Public Accounts Committee (PAC) was taken to break political log-jam and initiate legislation process in parliament.Despite huge ccorridorenges and economic constraints, he said, PTI was managing to run government affairs.He said that PTI Additional Secretary Ejaz Chaudhry would also perform his responsibilities in Punjab as well.