In this article three main issues are addressed using anecdotal and anonymised illustrations of situations in which the author has been engaged, during 35 years of medico-legal practice, to assist in the process of obtaining and analysing the evidence of children to facilitate decision-making by various authorities and tribunals. Those issues are: the competence of a child to be a witness in the Crown Court; the process by which a child's evidence has been elicited; and the use of an analytical approach to the content (verbal, behavioural and emotional) of a child's evidence as an aid to jurists who have the task of reaching a decision as to the child's reliability, as distinct from their competence.