California Private Investigator Practice Exam

Which of the following is a key purpose of cross-examination?

1. To introduce new evidence

2. To discover inconsistencies in testimony

3. To summarize the trial

4. To argue the case

The correct answer is: To discover inconsistencies in testimony

The key purpose of cross-examination is to discover inconsistencies in testimony. During this phase of a trial, the attorney has the opportunity to question witnesses provided by the opposing side. This questioning is aimed at revealing contradictions in the witness's statements or highlighting discrepancies between their testimony and other evidence presented. Cross-examination serves a critical role in testing the credibility and reliability of both the witness and their statements. By effectively exposing inconsistencies, the attorney can undermine the strength of the opposing party's case. This approach not only provides crucial insights but also allows the jury or judge to reconsider the validity of the witness's account based on the established discrepancies. Introducing new evidence is generally not a purpose of cross-examination; this typically occurs during direct examination or when a party presents its case. Summarizing the trial is a function performed during closing arguments, not during cross-examination. Similarly, while an attorney may indirectly argue their case by establishing doubt through cross-examination, the primary focus remains on scrutinizing the consistency and credibility of the opposing witness's testimony.