Article 51 — Expert Examination in Doubtful Cases.

(1) When there is a doubt as to the responsibility of the accused person, whether absolute or partial, the Court shall obtain expert evidence and may order an enquiry to be made as to the character, antecedents and circumstances of the accused person. Such evidence shall be obtained particularly when the accused person shows signs of a deranged mind or epilepsy, is deaf and dumb or is suffering from chronic intoxication due to alcohol or due to drugs. (2) The expert or experts shall be appointed by the. Court under the ordinary rules, of procedure. The Court shall define their terms of reference and the matters to be elucidated. The expert evidence shall describe the present condition of the accused person and its effect upon his faculties of judgment and free determination. It shall, in addition, afford guidance to the Court as to the expediency and the nature of medical treatment or safety measures. (3) On the basis of the expert evidence the Court shall make such decision as it thinks fit. In reaching its decision it shall be bound solely by definite scientific findings and not by the appreciation of the expert as to the legal inferences to be drawn therefrom.