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|45th Chief Justice of Sri Lanka|
2 March 2017 – 12 October 2018
|Appointed by||Maithripala Sirisena|
|Preceded by||K. Sripavan|
|Succeeded by||Nalin Perera|
|Puisne Justice of the Supreme Court of Sri Lanka|
10 July 2011 – 2 March 2017
|Appointed by||Mahinda Rajapaksa|
|40th Solicitor General of Sri Lanka|
|Appointed by||Chandrika Kumaratunga|
|Preceded by||C. R. De Silva|
|Succeeded by||Eva Wansundera|
|Alma mater||University of Colombo|
International Institute of Social Studies
Early life and education
Dep's father was Arthur C. Dep a police officer, who retired as a Deputy Inspector General of Police. Educated at St. Joseph's College, Colombo, where he excelled in studies, athletics, rugby, and soccer. Dep obtained a Bachelor of Arts in Development Studies at the University of Colombo. He represented the university in rugby and cricket.
Studying law at the Sri Lanka Law College, he was called to bar in October 1976 and began his legal practice. In January 1978, he joined the Attorney General's Department as a State Counsel. In February 1989 he was promoted to Senior State Counsel and in February 1996 he was promoted to Deputy Solicitor General and Additional Solicitor General in October 1999. He was appointed a President's Counsel in April 2000. In 2007, he was appointed Solicitor General and served in this post till 2011. During his tenure in the Attorney General’s Department, Dep won a scholarship by the Dutch Government that enabled him to acquire a Post-Graduate Diploma in International Law at the International Institute of Social Studies in The Hague. As a prosecutor he was involved in the Amarapala (Deputy Director of Customs) Murder case, Inoka Sevwandi Murder and the Sujith Prasanna Perera (Superintendent of Customs) Murder. He had served as the head of the Criminal Division of the Attorney General’s Department.
In 2011, he left the Attorney General’s Department, when he was appointed to a Puisne Justice of the Supreme Court of Sri Lanka. On February 27, 2017 he was nominated by the Constitutional Council as the 45th Chief Justice of Sri Lanka and was sworn in in March.
- "Sri Lanka named two new Supreme Court judges". Asian Tribune. Retrieved 16 November 2013.
- At a glance: Sri Lanka’s 45th CJ Priyasath Dep
- Malalasekera, Sarath. "Judge's role pivotal in administering justice". Dailynews.lk. Retrieved 16 November 2013.
| Chief Justice of Sri Lanka
C. R. De Silva
| Solicitor General of Sri Lanka