Was born in 1942, in Bombe Bakundu, Meme Division, South West Region of Cameroon. He studied at the University of Lagos, in Nigeria where he obtained a Bachelor of Laws Degree with honors in 1967. He went on to study at the Nigeria Law School in Lagos, passing the Bar examination in 1968. He was called to The Bar on the 25th of July 1968.
Indeed, after a long career on the bench where he headed jurisdictions in the English-speaking part of Cameroon before chairing the Administrative Chamber of the Supreme Court Mutanga Benjamin Itoe was Minister of Transportation (1984), Justice (1985) and Tourism (1989).
He was Deputy Chief Justice of the Supreme Court of Cameroon, and President of the Administrative Bench of that Court before being appointed by the Secretary General of the UN as a Judge of the Trial Chamber of the Special Court for Sierra Leone to judge war criminals. From 2002 to 2009 he presided over trial sessions.
His legal career spans more than three decades. He has served in numerous high offices in Cameroon including Minister of Justice and Keeper of Seals. In 1996, he participated in drafting the Constitution of Cameroon and the criminal procedure code