Expenses of witnesses
69.17.—(1) The prescribed officer for the purposes of section 143(1) of the Act of 1983 shall be the clerk of session appointed to act as clerk of court under rule 69.16.
(2) The expenses of a witness permitted under section 143(1) of the Act of 1983 shall be ascertained by the clerk of court.
(3) The expenses allowed under section 143(1) of the Act of 1983 shall, in the first instance, be paid by the party adducing that witness.