State v. Carlos R. Delgado, 2002 WI App 38 For Delgado: Richard D. Martin, Diana M. Felsmann, SPD, Milwaukee Appellate Issue/Holding: ¶8. After reviewing these cases, we can discern some general rules: (1) an expert witness can offer opinion testimony only if it complies with Wis. Stat. § 907.02; (2) the testimony can include opinions… Read more
6. Vouching for Other Witness
State v. David C. Tutlewski, 231 Wis.2d 379, 605 N.W.2d 561 (Ct. App. 1999) For Tutlewski: Dianne M. Erickson Issue: Whether one witness’s opinion that state’s witnesses were incapable of lying invaded the jury’s province. Holding: This testimony violated the rule that one witness may not testify to the credibility of another witness. The alleged sexual assault… Read more
