The Probation Board (Northern Ireland) Order 1982

11.  Any contract or instrument which, if entered into or executed by an individual, would not require to be[F1 executed as a deed] may be entered into or executed on behalf of the Board by any person generally or specifically authorised by the Board to act for that purpose and any document purporting to be such a contract or instrument shall be deemed to be such an instrument until the contrary is proved.N.I.