The National Accountability Bureau (NAB) on Wednesday approved to start an inquiry against Pakistan People’s Party (PPP) leader Khursheed Shah and former KP governor and Pakistan Muslim League-Nawaz (PML-N) leader Mehtab Abbasi in corruption cases. NAB Chairman Justice (r) Javed Iqbal chaired a meeting of executive board where several inquiries were approved. NAB board also approved inquiry against Mehtab Abbasi. The accountability bureau in a statement said the top most priority of bureau is to pursue the white collar crimes till their logical end. The statement added that NAB is strictly following the policy of accountability for all. The accountability watchdog further said approval for investigation against officers and workers of the information and broadcast ministry has also been given. An inquiry against former federal minister Tanveerul Hassan Gillani has been closed due to a lack of evidence, the statement added.