ISLAMABAD: The Supreme Court has said the National Accountability Bureau (NAB) should use its power impartially and not misuse it. A three-judge bench, headed by Justice Umar Ata Bandial, on Thursday was hearing appeals against the Peshawar High Court (PHC)'s decision in a case pertaining to filing of more than one reference against a government official. NAB appeals against 25 accused including the Peshawar Development Authority DG on corruption charges. The PHC had directed the anti-graft watchdog to file supplementary references and declared its two references "null and void". Justice Bandial said the NAB should not misuse his authority, adding in white-collar crimes documentary evidence is essential. He noted granting 90, 90 days remand in each case was cruelty. Justice Sayyed Mazahar Ali Akbar Naqvi said in the criminal cases, the remand was granted not more than 40 days. The 90 days remand of the NAB accused is given for completion of investigation, he added.