People v. Thompson

2017 IL App (3d) 160503
Appellate Court of Illinois·Decided September 6, 2017·No. 3-16-0503·Unpublished·Cited by 1 cases

Opinion

2017 IL App (3d) 160503

Opinion filed September 6, 2017 _____________________________________________________________________________

IN THE

APPELLATE COURT OF ILLINOIS

THIRD DISTRICT

THE PEOPLE OF THE STATE OF ) Appeal from the Circuit Court ILLINOIS, ) of the 13th Judicial Circuit, ) La Salle County, Illinois, Plaintiff-Appellee, ) ) Appeal No. 3-16-0503 v. ) Circuit No. 15-CF-414 ) JEREMY R. THOMPSON, ) Honorable ) H. Chris Ryan, Jr., Defendant-Appellant. ) Judge, Presiding. _____________________________________________________________________________

JUSTICE McDADE delivered the judgment of the court, with opinion. Justices O’Brien and Wright concurred in the judgment and opinion. _____________________________________________________________________________

OPINION

¶1 Defendant, Jeremy R. Thompson, challenges his convictions, arguing that the circuit

court erred in allowing an officer to testify as to ballistics results without sufficient foundation.

We reverse and remand for a new trial.

¶2 FACTS

¶3 Defendant was charged with (1) possession of a firearm by a felon (720 ILCS 5/24-1.1(a)

(West 2014)); (2) aggravated assault (720 ILCS 5/12-2(c)(5) (West 2014)), in that he “knowingly

shined a laser gun sight that was attached to a firearm, so that the laser beam struck the

immediate vicinity of Deputy Aaron Hollenbeck”; and (3) aggravated assault (720 ILCS 5/12- 2(c)(6)(i) (West 2014)), in that he pointed a firearm at Hollenbeck, knowing Hollenbeck was a

peace officer, placing Hollenbeck in reasonable apprehension of receiving a battery.

¶4 A jury trial was held at which the evidence established that just after 10 p.m. on

September 13, 2015, Hollenbeck and Deputy Matt Moore were dispatched to an apartment

building based on a theft complaint. They were advised by dispatch that there was a warrant out

for one of the tenants of the apartment building. They arrested the tenant. As they were walking

to the squad car, Hollenbeck and Moore noticed a green light bouncing off the building and

hitting the squad car. They looked up to see where the light was coming from and saw defendant

holding a rifle about 40 to 50 feet away on the other side of a fence. A woman was tugging on

defendant’s arm, causing the laser from the rifle’s scope to move around. Hollenbeck yelled at

everyone outside of the apartment building to get down. He then yelled multiple times at the man

to drop the gun. Hollenbeck thought he was going to get shot. The man and woman both took off

running in the opposite direction. Hollenbeck and Moore ran after defendant and the woman with

their guns drawn. They then saw defendant and the woman come back into view without the gun.

Hollenbeck told them to freeze and put up their hands. He then patted down defendant. He did

not find any weapons on him. Hollenbeck asked defendant where he placed the rifle, and

defendant responded, “I stuck it up my ass, why don’t you try looking there.” Defendant was

placed in handcuffs. Hollenbeck searched the area and found the rifle underneath a camper trailer

about 40 feet away. The gun turned out to be a .22-caliber pneumatic rifle that was not loaded.

¶5 The State called Detective Sergeant Adam Diss to testify regarding the muzzle velocity

of the pneumatic rifle in order to establish that it was considered a firearm. See 720 ILCS 5/2-7.1

(West 2014); 430 ILCS 65/1.1 (West 2014). Proving this essential element of all three of the

charged offenses required a showing that the velocity of a projectile from the muzzle of the air

2 rifle was 700 feet per second or greater. Diss testified that he worked in the investigations unit of

the La Salle County Sheriff’s Office and was a master firearms instructor with the Police

Training Institute in Champaign and a part-time gunsmith. In his personal time, Diss collects and

repairs firearms and reloads his own cartridges and chronograph cartridges. He discussed his

experience using a chronograph to test a firearm’s muzzle velocity. He said a chronograph is “an

electronic device that you fire over the top of it and it measures the speed of the round, the

velocity of the round.” He had been using a chronograph “in [his] personal time” for 20 years.

The State asked Diss, “In the firearms industry, what is the industry standard method in

measuring of muzzle velocity?” Diss stated, “The industry uses chronographs to check the

rounds.” Diss stated he had owned a chronograph for approximately 10 years and used his

friends’ chronographs prior to that. He had used a chronograph “[s]everal dozens” of times

through his experience with firearms. To gauge the accuracy of the chronograph, Diss said he

“fired [his] chronograph with friends’ chronographs and found it to be consistent with theirs, and

[he] fired factory loaded ammunition over it and found it to be consistent with factory loads.” He

checked his chronograph in this manner within six months of performing the tests for this case.

He never found it to be inaccurate.

¶6 Defense counsel objected to the foundation for Diss’s testimony regarding the tests Diss

performed with the chronograph. Outside the presence of the jury, the State and defense counsel

questioned Diss regarding his education and training in firearms and the use of the chronograph.

Diss stated that he did not have any formal degrees, formal training in forensic science, or any

formal training “with regard to ballistic measuring of speed of firearms.” When asked when he

last calibrated his chronograph, Diss stated, “You don’t calibrate personal chronographs.” He did

not consult any documentation to ascertain whether his chronograph was properly calibrated. He

3 knew there were standards for calibrating chronographs, but he did not know what they were.

Diss was unaware of national standards for using a chronograph to test the speed of bullets. He

was further unaware of the National Institute of Standards in Technology. Diss again stated that

he checked his chronograph against his friends’ chronographs, but he said he did not know when

or if their chronographs were calibrated.

¶7 Diss stated that when he used his chronograph in this case, the gun was not fixed, but he

remained in the same position. He did not know the wind speed, the humidity, or where the wind

was coming from during the time he tested the firearm. He did not know the standard for

recording wind resistance as he “didn’t think it was an issue.” Diss stated he did not base his

examination on any generally accepted scientific methodology, but only on his knowledge of his

chronograph. When using the chronograph, Diss placed it 10 feet away from the firearm and

fired 10 shots. He said he uses the same methodology each time based on his experience. He

always fired the slowest possible pellets. Diss said he was unaware of any other methodology

that would be relevant to its accuracy. Diss said he did not call the Illinois State Police for

guidance as to the methodology to conduct a ballistics test or send the gun for velocity testing at

the Illinois Crime Lab because “[t]hey do not offer velocity testing because they say they cannot

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People v. Thompson
2017 IL App (3d) 160503 (Appellate Court of Illinois, 2017)