Section 11(1)(f) in Rules Regarding Prosecution of Criminal Cases Instituted at the Instance of the Departmental Officers
(f)When the case is put into court by the Police, the senior officer of the department concerned present in the station should see that all witnesses serving in the department and all documentary evidence in the control of the department, are punctually produced, and should also appoint an officer of the department (preferably the officer who attended the investigation) to attend the proceedings in court and assist the prosecuting staff.