How it beganThe witness recalled that he knew Mr Emefiele in 2015 through one Eric, who was his personal assistant as CBN governor. He said he told Mr Obazee that he would accept responsibility. In his testimony, Mr Mustapha said Mr Buhari’s signature was forged to give approval to the cash withdrawal of $6.2 million from the CBN vault. The seal is the authority,” Mr Mustapha told the judge. But giving his account of what transpired, Mr Mustapha said neither he nor Mr Buhari gave their nod to the withdrawal of the funds.