Evidence of witnesses—general ruleE+W
32.2—(1) The general rule is that any fact which needs to be proved by the evidence of witnesses is to be proved—
(a)at trial, by their oral evidence given in public; and
(b)at any other hearing, by their evidence in writing.
(2) This is subject—
(a)to any provision to the contrary contained in these Rules or elsewhere; or
(b)to any order of the court.