In a move that heightened tensions between the Government and the Judiciary, Pakistan’s Supreme Court has summoned Law Minister Babar Awan to explain why authorities had not implemented its verdict striking down a graft amnesty that benefited President Asif Ali Zardari.<br/> <br/>A Five-Judge Bench summoned Awan to appear before it on May 25 after Law Secretary Aqil Mirza, who recently resigned, sent a letter to the court saying he could not appear before it as he was unwell.<br/> <br/>The apex court had summoned Mirza and Attorney General Anwar-ul-Haq to appear before it yesterday to explain why the government had not contacted authorities in Switzerland to reopen graft cases against Zardari.<br/> <br/> The Bench observed that no one was taking responsibility for the failure to implement its verdict on the National Reconciliation Ordinance, NRO, a graft amnesty issued by former military ruler Pervez Musharrraf in 2007 that benefited over 8,000 people, including Zardari and several close aides.<br/> <br/>Since the apex court issued the ruling last year, it has been pressing the Government to reopen corruption cases against Zardari in Swiss cases.<br/> <br/>