Federal Law Secretary Justice (retd) Aaqil Mirza has tendered his resignation from his office, report said here Friday. A five-member larger bench of the Supreme Court of Pakistan yesterday summoned Mirza and Chairman NAB on May 13 to explain their contradictory statements on the implementation of the NRO judgment. On Thursday, Attorney General of Pakistan Justice (Retd) Molvi Anwarul-Haq surprised the bench - hearing a suo moto notice on the implementation of SCs NRO verdict - when he pleaded the Swiss cases against President Asif Ali Zardari cannot be reopened and therefore there is no need for any correspondence with the Swiss authorities on the issue. The Swiss cases issue is over and no letter has yet been written to Swiss authorities in this regard nor is one necessary, Haq read a letter by Mirza which he submitted before the bench.