Supreme Court judge Isaac Lenaola will head the court for the next two years, with a possible extension to four years.
UK-born judge Andrew Hatton, appointed to Residual Special Court for Sierra Leone in 2013, will serve as the vice president.
Supreme Court judge Isaac Lenaola was on Friday elected the president of a Hague-based court created as a result of a civil war in Sierra Leone that raged on from 1991 to 2002, leaving more than 50,000 people dead.
After the war, the Special Court for Sierra Leone was formed by the Sierra Leonean government and the United Nations. Its headquarters were at the Hague, and it was given the mandate to prosecute those who bore the greatest responsibility violating international humanitarian law and Sierra Leonean law.