For the purposes of this Part, a letter purporting to be signed by or on behalf of the registrar of solicitors in Scotland—
(a)stating that a person specified in the letter is or is not a solicitor in Scotland shall be evidence that that person is or, as the case may be, is not a solicitor in Scotland;
(b)stating that a person specified in the letter did not at any time during a period so specified have in force a practising certificate as a solicitor in Scotland shall be evidence that that person was not during any part of that period a duly certificated solicitor in Scotland.