April 26, 2013 Klang: DAP National Chairperson, Karpal Singh tells a crowd numbering easily 2,000 that should Pakatan come to Federal power, it will bring to book those who've committed wrong doings during the years of Barisan rule.<br /><br />Karpal specifically targeted Dr Mahathir Mohamad who he said had committed abuse of power during the 22 years of his tenure as prime minister.