 The letter was supposed to be a clearance letter for the project under investigation purportedly written by the previous DG of the NSO, Umaru Shinkafi.Upon examination by the NSO, it turned out that the letter was actually written during Rafindadi's tenure as DG NSO, the name of the officer that signed the letter was fake and the letter was declared as a forgery.In the "Black Gold" affair, Buhari and Idiagbon had finally found a very good excuse to rid themselves of Babangida, he was slated for retirement and Idiagbon travelled to Mecca for the Hajj.