 From 1997 to 1999 he was made Professor of Law and Head of Department of Public Law, University of Lagos.From 1999 to 2007, Osinbajo was Member of Cabinet, Lagos State Ministry of Justice, also Attorney-General and Commissioner for Justice.From 2007 to 2013 Osinbajo was once again employed as a Professor of Law, Department of Public Law, Faculty of Law, University of Lagos.