A district court judge in Chicago granted the motion of defendant Ryobi Technologies Inc. to exclude an expert witness as unreliable and irrelevant. Purportedly, it would have cost Ryobi $50 to $150 to install an automatic braking system on the table saw that sliced off Brandon Stollings’s index finger and portions of several other fingers in a “kickback” incident.
Under Illinois law, it is required that expert testimony is necessary to prove that a product was unreasonably dangerous. Stollings wanted to call John Graham as his expert to testify that each saw sold without the safety device burdens society with an average of $753 in accident costs. The basis of Graham’s opinion was that the automatic braking system would have been 90 percent effective.
After this appeal was taken, the U.S. Court of Appeals reversed ruling that the district court judge’s exclusion of Graham’s testimony on reliability grounds was an abuse of discretion because it “intruded too far into the province of the jury.” Graham’s expert opinion was relevant as to whether the Ryobi saw was unreasonably dangerous.