Civil Code (Cap. 16), article 692

692. (1) No evidence is admissible which is intended to show that the institution or legacy, made in favour of any person, o r body corporate, or for any use specified in the will, is merely fict itious, and that such institution or l egacy is in reality made in favou r of a person or body corporate, or for a use, not disclosed in the wi ll, notwithstanding any expression c ontained in the will calculated to constitute an indication or a p resumption of any such intention . (2) The provisions of this article shall not apply in any case i n which the institution or legacy is impeached on the ground that such institution or legacy was m ade through intermediaries in favour of persons under a disability. Fiduciary dispositions.