Since joining the Supreme Court in 2004, he was an Adjunct Professor of Law at the University of Ghana; and a visiting jurist at overseas institutions including the University of Akron School of Law in Ohio, Loyola University Law School in Chicago, Northern Illinois University Law School in DeKalb, Illinois, Washburn University School of Law in Topeka, Kansas, and the Nelson Institute for International & Foreign Affairs, James Madison University, Virginia, USA.