Adamu, a former Director General of the National Sports Commission (NSC) is among the six names identified for alleged infringements of the FIFA Code of Ethics.
The other officials include; Worawi Makudi, Jeffery Webb, Ricardo Teixra, Eugenio Figeredo and Nicolas Leoz.
Adamu was a FIFA executive committee for four years until 2010 , when he was banned from all football related activities for three years over claims that he asked for money for World Cup votes.
A statement from FIFA reads: “Formal investigation proceedings relating to the suspicion of infringements of the FIFA Code of Ethics are amongst others ongoing against Worawi Makudi, Jeffrey Webb, Ricardo Teixeira, Amos Adamu, Eugenio Figueredo and Nicolás Leoz.
“Proceedings relating to the two officials Ángel María Villar Llona and Franz Beckenbauer have already been passed on to the adjudicatory chamber. For procedural reasons, no further names of other parties affected by the proceedings are currently being disclosed.” According to the statement, proceedings are also ongoing against FIFA President Joseph Blatter and UEFA President Michel Platini, both of whom are currently provisionally suspended.
“Under the FIFA Code of Ethics, pursuant to the presumption of innocence, the investigatory chamber shall examine all circumstances of the cases equally.
“In this sense, all parties are presumed innocent until a decision has been passed by the adjudicatory chamber.”