All examinations of witnesses are expected to be done in open court.
Summary Conviction Trials
Examination of witnesses
(2) The prosecutor or defendant, as the case may be, may examine and cross-examine witnesses personally or by counsel or agent.
(3) Every witness at a trial in proceedings to which this Part applies shall be examined under oath.
R.S., c. C-34, s. 737.
Where trial counsel does not object to inadmissible evidence, that failure cannot make inadmissible evidence admissible.