Power of judge to forbid certain questions

(1) The judge may forbid any question or inquiry which he regards as indecent or scandalous, although it may have some bearing on the question before the court, unless it relates to facts in issue or to matters necessary to be known in order to determine whether or not the facts in issue existed. (2) The judge shall forbid any question appearing to him as intended to insult or annoy, or to be needlessly offensive in form, or not relevant to any matter proper to be investigated in the cause or