Regulation 44

Every letter sent by or to a prisoner may be opened and read by a prison officer.

A copy may be made of every letter sent by or to a prisoner.

A letter sent by or to a prisoner may be withheld if it contains anything that affects the security or good order of the prison.

Paragraphs (2) and (3) do not apply to letters written by a prisoner to the prisoner’s legal adviser and letters written by a prisoner’s legal adviser.