Subject Index Expert Witnesses

Bringing in the Experts

By Hon. James M. Varga
April
2023
Article
, Page 30
A trial judge offers an “authoritative text” on the admissibility of expert testimony at trial.

Expert testimony allowed under Frye when expert relied upon information from interested litigant and there was a lack of definitive evidence concerning causation

March
2023
Illinois Law Update
, Page 20
On Dec. 20, 2022, the First District of the Illinois Appellate Court held that where an expert witness relies on information from interested litigants and where the expert relies on positive “association” rather than “causation,” the expert’s opinions may still be admissible.

Police officer giving opinion at trial is improper when asked if a crime had been committed

September
2021
Illinois Law Update
, Page 18
On June 3, 2021, the Second District of the Illinois Appellate Court held that a new trial is warranted because a police officer impermissibly testified to his opinion on whether a crime occurred.

Rule 201(b)(3) expert’s work product is discoverable only upon showing of exceptional circumstances

February
2021
Illinois Law Update
, Page 14
On Nov. 19, 2020, the Illinois Supreme Court held that a Rule 201(b)(3) nontestifying expert’s identity, opinions, and work product are discoverable only upon a showing of exceptional circumstances in medical malpractice cases.

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