This he said when officially opening the first session of the Court of Appeal on Tuesday.
Dr Mosito said administration of justice requires fair trial adding that trials have consequences.
He said in a civil sphere, there may be significant personal or financial consequences arising from judgments of the court.
He showed that in criminal context, there are potentially serious consequences if terms of imprisonment are imposed after conviction.
“A fair trial accordingly becomes essential. This is the fundamental requirement of the administration of justice and is reflected in section 12 of the Constitution of Lesotho which provides for any person who is lawfully arrested to have the right to a fair trial,” he said.