(iv) acquitted on the ground that he was of unsound mind when the act was committed and is detained under section 471 of the Code of Criminal Procedure, pending the orders and during the pleasure of Government; and a convicted prisoner who becomes a mental patient in prison. Section 464, 466 and 471 of Criminal Procedure Code S. 464. Procedure in case of accused being lunatic. S. 466. Release of lunatic pending, investigation or trial— S. 471. Person acquitted on such ground to Le detained in safe custody. Procedure when certain mental patients are committed to prison. Rule441. (i) Whenever a person belonging to class (ii) in rule 440 is detained in a prison under section 466 of the Code of Criminal Procedure, the Superintendent shall apply to [District Coordination Officer] for an order for his transfer to mental hospital in anticipation of the receipt of orders from Government. (ii) Whenever a person belonging to class (i) or Sub-Rules (ii) of rule 440 is detained in a prison for more than a month, the fact shall be reported to the Inspector-General. Confinement of criminal mental patient. Rule442. (i) Whenever a criminal mental patient is found to be dangerous, noisy or filthy in his habits, he shall be confined in a cell, and kept under strict and continuous supervision. (ii) Mental patients other than those mentioned in clause (i), may in the discretion of the Medical Officer, be detained in the prison hospital or in a ward set apart for the purpose. Close observation of convicted prisoners feigning insanity. Rule443. When a convicted prisoner is acting as if he was insane, the Superintendent shall put him under observation. The Medical Officer shall scrutinize his symptoms closely so as to preclude the possibility of a criminal feigning insanity. Procedure in case of a convicted prisoner of unsound mind. Rule444. Whenever it appears to the Superintendent that any convicted prisoner is of unsound mind, he shall, in the first instance, place the patient under the observation of Medical Officer for a period of ten days. After the expiry of this period, the Medical Officer shall report the result to the Superintendent. If the patient is found to be of unsound mind, a report regarding his case shall be 154