The Appellant was convicted of the offence of armed robbery and sentenced to a thirty-year jail term. During the trial the trial court realised in mitigation that the Appellant was claiming to be of the age of fifteen years. The trial court called his mother to testify on the age of the Appellant. She testified that the Appellant was aged fifteen. The trial court sought for medical evidence from the District Hospital. The District Medical Officer, in a PF3 which was tendered and admitted in evidence, was of the view that the Appellant was above nineteen years of age. The trial court was convinced by the expert evidence than the Appellant mother’s, hence, this appeal.