Letters and visits generally

(1) Without prejudice to the provisions of rule 86 of these Rules the Minister notwithstanding any provision of this and the nine following rules or of any special rule, may impose such restrictions upon and supervision over letters and visits as he considers necessary for securing discipline and good order, for the prevention of crime and criminal associations, and for the welfare of individuals. (2) Except as provided in these Rules, no person shall be allowed to communicate with a prisoner without special authority. (3) Every letter to or from a prisoner shall (except as hereafter provided in these Rules in the case of certain communications to a legal adviser) be read, by the Superintendent or by a responsible officer deputed by him for the purpose, and it shall be within the discretion of the Superintendent to stop any letter on the ground that its contents are objectionable or that it is of inordinate length. 49