(7)Examination of police injury cases and evidence in court. - No fee is admissible to a medical officer for giving evidence in criminal cases either for the prosecution or for the defence when he is summoned to give evidence on behalf of the Government. Similarly, fees cannot be claimed by a medical officer when he is requested by the police to report on the age of an accused person or as to whether injuries inflicted are simple or grievous.In all other cases, when evidence is given for a private person or a public body, medical officers should settle their fees before they go into court. Once they have been summoned to give evidence by a competent court, the additional fee, if any, will be settled at the discretion of the court:Provided that no government medical officer is permitted without first obtaining the permission of the Director of Medical and Health Services to give evidence for the defence in a case in which the Government is the complainant.