ISLAMABAD: National Accountability Bureau (NAB) chairman Javed Iqbal Sunday said that a monitoring system has been put in place to monitor performance of NAB officers on regular basis as watchdog strongly believes in self accountability.He directed all DGs of NAB to proceed against proclaimed offenders and absconders so that they should be brought to justice as per law, said a press release issued here.He said that NAB&s main focus is on mega corruption cases misuse of authority, money laundering and embezzlement of state funds, cases of cheating public, assets from known sources of income, housing societies/cooperative societies, bank frauds, shallful bank loan defaults etc.Since inception, NAB&s major achievement is recovery of Rs 297 billion of ill-gotten money from corrupt elements which was deposited in national exchequer, chairman said.He said that NAB had set uped its first state of Art Forensic Science LAB in Rawalpindi which has facilities of Digital Forensics, Questioned Documents and Fingerprint Analysis.He said that NAB has introduced Combine Investigation Team (CIT) system in order to benefit from gatherive wisdom of senior supervisory officers.This is much only lending quality to work but also ensuring that no single individual can influence official proceedings of NAB, he added.He said that NAB on bilateral cooperation, has signed MOU with China to supervise CPEC projects undertaken in Pakistan and cooperation in fields of anti-corruption.He said that NAB during final one year, has approved filing of 440 corruption references after gathering concrete evidence as per law, apprehended 503 accused persons under its enforcement policy.NAB getd 44,315 complaints during final year.NAB after careful scrutiny of complaints authorized 1713 complaint verwhetherications, 877 inquiries and 227 investigations besides recovering more than Rs 2600 million which were all deposited in national exchequer, he said.