law: 34. Amendment of order or document.-
  If, after the admission of any mentally ill person to any psychiatric hospital or psychiatric nursing home under a reception order, it appears that the order under which he was admitted or detained or any of the documents on the basis of which such order was made is defective or incorrect, the same may, at any time thereafter, be amended with the permission of the Magistrate or the District Court, by the person or persons who signed the same and upon such amendment being made, the order shall have effect and shall be deemed always to have had effect as if it had been originally made as so amended, or, as the case may be, the documents upon which it was made had been originally furnished as so amended.