10. The Society may, on a resolution in that behalf made by the Council, take control of all sums of money due from the solicitor or his firm to, or held by him or his firm (in whatever manner or in whatever account and whether received before, on or after the date of the resolution) on behalf of, his or his firm's clients or subject to any controlled trust, and for that purpose the Society shall serve upon the solicitor or his firm, and, except where the provisions of Article 40 apply, upon any bank[F1 or building society] and upon any other person having possession or control of any such sums of money a notice, together with a certified copy of such resolution, prohibiting the payment out of such sums of money otherwise than pursuant to paragraph 12 or 13.N.I.