delivered the opinion of the court:
After a stipulated bench trial, defendant, Jose Ortiz, was convicted of possession of a controlled substance (Ill. Rev. Stat. 1987, ch. BGfz, par. 1402) and sentenced to three years in prison. On appeal, he contends (1) the trial court erred in denying his motion to quash his arrest and suppress a plastic bag containing white powder seized during his arrest and (2) the State failed to prove beyond a reasonable doubt that the substance contained in the bag was cocaine. We affirm.
Prior to trial, the court conducted a hearing on defendant’s motion to quash his arrest and suppress evidence. At the hearing, defendant testified that while walking in the 1300 block of North Rockwell, Chicago, at about 12:15 a.m. on June 9, 1987, he was approached by a plainclothes police officer. The officer began searching him and told him to open his hands. When he asked the officer why he should do that, the officer began hitting him. He then attempted to flee, but, before he could get very far away, the officer and a second police officer caught up with him. The officers struggled with him for awhile and then placed him under arrest.
Defendant further testified that after the arrest he reported the police officers’ conduct to the Office of Professional Standards. He admitted telling representatives of that office that he was carrying a bag of cocaine when the incident occurred. He was holding the bag, which was about the size of his palm, completely within his clenched fist. He denied that the bag contained 17 smaller bags and stated that he only gave the bag to the officers after the struggle.
Officer David Figlioli, a gang crimes specialist, also testified at the hearing. He stated that while riding in an unmarked police car driven by his partner, Officer Wyora, at about 12:15 a.m. on June 9, he saw defendant, whom he knew from past dealings “in his professional capacity,” walking in the 1300 block of North Rockwell. Streetlights were on at the time. When Figlioli was about 15 feet away from defendant, he could see from his unobstructed vantage point in the passenger seat of the car that defendant was holding a plastic bag, about 2V2 inches to 3 inches in diameter, in his left hand. He saw a white powdery substance, which he believed to be cocaine, in a portion of the bag sticking out of defendant’s hand. After seeing this, he called out to defendant by his nickname and told him to stop. After defendant stopped, Figlioli and Wyora approached defendant who, for some reason, placed his thumbs in his ears and held up his hands. Defendant then suddenly struck Wyora and attempted to flee. After a short chase, they caught defendant and tried to detain him, but he began striking and kicking them. They then wrestled on the ground with him for about 10 minutes before being able to subdue him. After the struggle, Figlioli took the bag that defendant had been holding and saw that it contained 17 smaller bags with a white powdery substance. At the conclusion of Figlioli’s testimony, the trial court denied the motion, noting that it found Figlioli’s testimony to be more credible than defendant’s testimony.
The parties stipulated to the use of the motion hearing testimony at trial. Also, when the court inquired whether there was a stipulation on the chemist’s report, the State responded:
“Also stipulate to the report prepared by Marsha Ross on June 11th, 1987, that she tested the substance which was one clear bag containing 17 clear plastic, clear plastic each containing white powder tested out at 13.6 grams of controlled substance, cocaine.”
The court then found defendant guilty of possession of a controlled substance.
Defendant first contends that the trial court should have granted his motion to quash his arrest and suppress the plastic bag because there were no specific or articulable facts which reasonably warranted the police stopping him. He argues that Officer Figlioli’s testimony that he saw him carrying a plastic bag with a white powdery substance was incredible, considering that Figlioli was about 15 feet away when he made his observation, it was dark outside and the bag measured only 2V2 inches to 3 inches in diameter. On balance, we find no merit to this issue.
In order to justify the intrusion which results when police stop a private citizen in the public way, the police must be able to point to specific and articulable facts which, when considered with reasonable inferences, warrant the intrusion. (Terry v. Ohio (1968),
In the present case, we cannot say that the trial court’s denial of the motion was manifestly erroneous. There were specific and articulable facts to support stopping defendant. Here, Officer Figlioli testified that he saw defendant, whom he knew from previous professional dealings, walking down the 1300 block of North Rockwell in the early morning hours of June 9, 1987, with a plastic bag containing a white powdery substance, believed to be cocaine, in his left hand. He made these observations from the unobstructed vantage point of the passenger seat of a car, approximately 15 feet from defendant, with the benefit of illumination from streetlights. On balance, these circumstances and the reasonable inferences to be drawn from them can be deemed to have created a rational, articulable suspicion warranting defendant’s stop. See People v. Clark (1989),
Defendant argues that Officer Figlioli should not be believed because of the improbability that he could see a 2V2-inch to 3-inch bag of white powder from an automobile, a distance of about 15 feet away, at about 12:15 in the morning. A reviewing court will not reverse a conviction based on the trier of fact’s determination of a credibility issue unless the evidence is so improbable as to raise a reasonable doubt of guilt. (People v. Manion (1977),
The fact that Officer Figlioli saw a person with whom he had previous professional dealings walking down a street in the early morning hours with a bag containing a white powdery .substance was sufficient to justify the stop. Under the circumstances, it was not unreasonable for a police officer in the gang crimes unit to infer that the white powdery substance was an illicit drug and to stop defendant for further investigation. Once the stop occurred, the series of events which followed, including the assault, the attempted flight and the relatively lengthy struggle, justified the subsequent arrest and seizure of the plastic bag.
A somewhat similar factual situation was present in People v. Clark (1989),
People v. Steckhan (1983),
Defendant next contends that the State failed to prove beyond a reasonable doubt that the substance in the plastic bag was cocaine and thus failed to prove a key element of the possession of a controlled substance charge. He argues that the stipulation regarding Marsha Ross’ report was insufficient proof that the substance was cocaine because it did not identify Ross as a qualified expert and did not identify the tests she performed to conclude that the substance was cocaine. He further argues that without expert testimony that the substance was cocaine, the State could not establish the key element of the identity of the controlled substance. We disagree.
In order to obtain a conviction for possession of a controlled substance, the State must prove beyond a reasonable doubt that the substance in question is in fact a controlled substance. (See People v. Harrison (1962),
In the present case, there was no expert testimony that the white powdery substance was cocaine. There was the stipulation regarding Marsha Ross’ report but that stipulation did not expressly state that Ross was an expert qualified to render a chemical analysis of the substance in question. We cannot infer from the trial court’s casual reference to a “chemist’s report” that the parties intended to stipulate that Marsha Ross was in fact a qualified chemist. The court’s remark can be construed to communicate no more than a casual identification of the document. It cannot be construed as a direeled inquiry as to whether there would be a stipulation concerning the qualifications of its preparer. See People v. Harrison (1962),
The fact that the parties may have stipulated to the admissibility of that report does not of itself control the weight which can be attributed to it. (1 Wigmore, Evidence, §12 (Tillers rev. ed. 1983).) If there is no evidence presented to establish Ross’ qualifications or a stipulation that she possessed the threshold qualifications to render her analysis admissible as an expert’s report, the report should not be given the weight of an expert’s report.
However, even without expert testimony, there was sufficient other evidence to establish that the substance was cocaine. Significantly, when defendant reported the police officers’ alleged misconduct to the representatives of the Office of Professional Standards, he voluntarily admitted that he was carrying cocaine in the bag. Although an admission by itself is insufficient to establish that the substance was cocaine, an admission together with corroborating circumstances may be sufficient. (People v. Jones (1979),
At oral argument, defendant for the first time argued that his motion hearing testimony that he admitted carrying cocaine was inadmissible evidence at trial and cannot be considered in proving his guilt. As a general rule, a defendant’s testimony at a motion to suppress hearing may not be subsequently admitted at trial on the issue of guilt. (People v. Gross (1988),
The cases cited by defendant, People v. Park (1978),
For the foregoing reasons, we affirm the judgment of the circuit court of Cook County.
Affirmed.
LORENZ and MURRAY, JJ., concur.
