Justice Alusine Sanie Sesay has been a judge in the Sierra Leone judiciary since 2007, when he was appointed Resident Judge in the Northern Province.
He was appointed High Court Judge in 2009 and Judge of the Court of Appeal in 2015. Justice Sesay has served as a Justice of the Supreme Court since 2019.
From 2004 to 2006 he served as co-counsel and case manager in the SCSL trial of The Prosecutor v. Sam Hinga Norman, et. al. From 2004 to 2006 he was employed as Consultant State Counsel attached to the Director of Public Prosecutions.
Prior to 2007 he was a legal practitioner in private practice.
Justice Sesay is a graduate of Fourah Bay College, University of Sierra Leone, and was enrolled as a Barrister and Solicitor of the High Court in 1992.