Cross-examination can expose the improbability of a witness’s testimony. The evidentiary authority for probing the improbability of a witness’s testimony is found in Evidence Rules 401 and 611. Rule 401 states the test for relevance: “Evidence is relevant if: (a) it has a tendency to make the existence of any fact more or less probable.” Rule 611states that the court may “exercise reasonable control over the mode and order of examining witnesses and presenting evidence so as to (1) to make the procedures effective for determining the truth. . .” This provision of Rule 611(a) can convince the judge to overrule an objection to the cross that questions the improbability of the witness’s testimony. cross-examination to proceed. Rule 611(b) includes cross-examination matters: (1) within the scope of direct; (2) affecting credibility; or (3) that the court decides are pertinent.