Pakistan Cricket Board chairman Ijaz Butt believes it is impossible to completely eradicate spot-fixing not only for the PCB but also for the International Cricket Council. "To control the spot-fixing, especially prior to its happening, is almost impossible not only for the PCB but for the ICC as well," said Butt in an interview to News One channel. "It has to be an all out effort from all concerned to ensure that such wrongdoing does not occur in the future," the PCB chairman added. On the measures taken by the PCB to eradicate corruption from the game, butt, without elaborating, vowed to come down even harder on the culprits in the future. "PCB and ICC have taken a lot of steps, future plans have been drafted to pursues a policy of zero tolerance to corruption," Butt maintained. The spot-fixing scandal had rocked world cricket after a British tabloid revealed that a bookmaker Mazhar Majeed had bribed three Pakistani players -- Test skipper Salman Butt, pace duo Muhammad Aamer and Mohammad Asif -- to deliberately bowl no-balls during the fourth Test against England at Lord's. The ICC quickly sprang into action and provisionally suspended the trio in early September. Their hearing is due next month in Doha.