Examination-in-chief, cross-examination and re-examination
139.—(1)  The examination of a witness by the party who calls him shall be called his examination-in-chief.
(2)  The examination of a witness by the adverse party shall be called his cross-examination.
(3)  Where a witness has been cross-examined and is then examined by the party who called him, such examination shall be called his re-examination.