(1) CONTROL BY JUDGE. The judge shall exercise reasonable control over the mode and order of interrogating witnesses and presenting evidence so as to do all of the following:
(a) Make the interrogation and presentation effective for the ascertainment of the truth.
(b) Avoid needless consumption of time.
(c) Protect witnesses from harassment or undue embarrassment.
(2) SCOPE OF CROSS-EXAMINATION. A witness may be crossexamined on any matter relevant to any issue in the case, including credibility. In the interests of justice, the judge may limit cross-examination with respect to matters not testified to on direct examination.
(3) LEADING QUESTIONS. Leading questions should not be used on the direct examination of a witness except as may be necessary to develop the witness’s testimony. Ordinarily leading questions should be permitted on cross-examination. In civil cases, a party is entitled to call an adverse party or witness identified with the adverse party and interrogate by leading questions.