RECENT STANDARD OF REVIEW DECISIONS Hugh C. Griffin Hall Prangle & Schoonveld, LLC 200 S. Wacker Drive, Suite 3300 Chicago, Illinois 60606 Phone: (312) 267-6234 Fax: (312) 345-9608 Email:
[email protected] Frye Motion Review – De Novo Plus. In In re Commitment of Simons, 213 Ill. 2d 523, 531 (2004), the court adopted a de novo “plus” standard of review for motions made under Frye v. United States, 293 F. 1013 (D.C. Cir. 1923), seeking to bar an expert’s opinion because it is not based on a generally accepted methodology or recognized scientific principles in the particular field in which the expert purports to testify. The trial court’s ruling on the Frye motion is reviewed de novo and the reviewing court may consider not only the trial court record, but also, where appropriate, sources outside the record including legal and scientific articles and court opinions from other jurisdictions. The decision as to whether the expert witness is qualified to testify remains reviewable under an abuse of discretion standard. Evidentiary And Instruction Rulings May Be Subject To De Novo Review While the trial court’s decision to admit or refuse to admit evidence or to give or refuse to give an instruction is normally reviewed under the abuse of discretion standard, the standard of review is de novo if the lower court’s ruling is based on a principle of law or case decisions. See Nolan v. Weil-McLain, 233 Ill. 2d 416, 429 (2009): “Because the lower courts’ exclusion of evidence of decedent’s other exposures to asbestos was based upon their interpretation of existing case law, the question presented is one of law.