Western Australian Consolidated Acts (1) Where any person
duly bound by recognizance or served with a subpoena, summons, or order to
attend in any court as a witness at the trial of any case, civil or criminal,
fails to appear when called in open court, either at such trial or upon the
day appointed for such trial, the court may —
(a) upon
proof of such recognizance or of his having been duly served with such
subpoena, summons, or order, call upon him to show cause why execution upon
such recognizance or an attachment for disobedience to such subpoena, summons,
or order should not be issued against him; or
(b) upon
proof of such recognizance or service, and also that his non-appearance is
without just cause or reasonable excuse, and upon oath that he will probably
be able to give material evidence, issue a warrant to bring him before the
court to give evidence at such trial.
(2) Such proof may be
oral before the court or by affidavit.