delivered the opinion of the court:
Following a bench trial in the circuit court of Du Page County, defendant, Jack T. Mann, was found guilty of speeding (625 ILCS 5/11—601(b) (West 2006)). On appeal, he argues that the trial court erred in permitting the State to introduce evidence that the officer who ticketed defendant used a LIDAR 1 device to measure the speed of defendant’s vehicle. We affirm.
Using a Kustom ProLaser III LIDAR device, the officer determined that defendant’s vehicle was traveling at 80 miles per hour. The vehicle was traveling along a portion of 1-88 where the posted speed limit was 55 miles per hour. Defendant objected that the State could not introduce evidence resulting from the use of the LIDAR device unless the trial court first held a hearing under Frye v. United States,
In Illinois, the admissibility of new or novel scientific evidence at trial is governed by the standard set forth in Frye, which permits such evidence “only if the methodology or scientific principle upon which the opinion is based is ‘sufficiently established to have gained general acceptance in the particular field in which it belongs.’ ” In re Commitment of Simons,
In People v. McKown,
However, courts must exercise caution when relying on prior judicial decisions. “ ‘Unless the question of general acceptance has been thoroughly and thoughtfully litigated in the previous cases, *** reliance on judicial practice is a hollow ritual.’ ” People v. Kirk,
The admissibility of LIDAR evidence of the speed of a moving vehicle was considered in People v. Canulli,
The second reason given by the Canulli court for its decision was more case-specific: the court held that the issue of the scientific acceptance of laser technology to measure the speed of vehicles was not “adequately litigated” in the prior unrelated case. Canulli,
Ordinarily, a party may supplement the record on appeal only with documents that were actually before the trial court. Ruane v. Amore,
Goldstein v. State,
The trial court ruled in the prosecution’s favor and the Court of Appeals of Maryland affirmed. The Goldstein court observed that “[t]he theory underlying the LTI 20—20 would be familiar to any student of high school physics.” Goldstein,
The Goldstein court noted that the trial court had reviewed not only the scientific technique of laser speed measurement, but also the design of the LTI 20—20 device. The court held, however, that Frye requires review only of the general scientific process, not individual products employing the process. Goldstein,
In State v. Abeskaron,
Reviewing courts in Hawaii, Idaho, and Washington have cited Goldstein and Abeskaron in holding that speed measurements from laser devices are admissible. See State v. Stoa,
In our view, these decisions are ample authority that the use of LIDAR to measure the speed of moving vehicles is based on generally accepted scientific principles. Therefore, the trial court did not err in overruling defendant’s objection to the evidence.
For the foregoing reasons, the judgment of the circuit court of Du Eage County is affirmed.
Affirmed.
HUTCHINSON and O’MALLEY, JJ., concur.
Notes
“LIDAR” stands for “Light Detection and Ranging.” See People v. Sparks,
