Commonwealth vs. Nancy White.
Following a bench trial, the defendant was convicted of operating a motor vehicle under the influence of alcohol (fourth offense) and operating a vehicle with a license revoked as a habitual traffic offender. On appeal, the defendant claims that the judge erred in denying her motion to suppress evidence derived from the traffic stop because the stop was not supported by reasonable suspicion. The judge reasoned that the stop was justified because the police relied on information provided by an identified witness who made firsthand observations of the defendant negligently operating her vehicle. We affirm.
In reviewing the denial of a motion to suppress, we accept the motion judge‘s findings of fact unless they are clearly
“When, as here, a police radio broadcast directs officers to make an investigatory stop of a motor vehicle, the stop is lawful only if the Commonwealth establishes both the indicia of reliability of the transmitted information and the particularity of the description of the motor vehicle.” Commonwealth v. Lopes, 455 Mass. 147, 155 (2009). To meet its burden, “the Commonwealth must show the basis of knowledge of the source of the information (the basis of knowledge test) and the underlying circumstances demonstrating that the source of the information was credible or the information reliable (veracity test).” Id. at 155-156. “Because the standard is reasonable suspicion rather than probable cause, a less rigorous showing in each of these areas is permissible.” Commonwealth v. Lyons, 409 Mass. 16, 19 (1990). Though “[i]ndependent police corroboration may make up for deficiencies in one or both of these factors” (citation omitted), Commonwealth v. Riggieri, 438 Mass. 613, 615-616 (2003), such corroboration is not required where the
Here, the source of the information was a 911 caller who identified herself and saw the defendant‘s erratic driving. The witness gave the 911 operator her name, home address, and a description of her own vehicle. Though she could not identify any physical characteristics of the defendant, she accurately described the defendant‘s vehicle as a tan Chrysler with Wisconsin plates. The witness followed the defendant‘s vehicle for about two minutes and provided real-time commentary on the defendant‘s driving; she described how the defendant could “barely stay on the road” and kept “veering off to the right and then going back on.” As the defendant turned off the road, the witness gasped as she described the defendant almost hitting a telephone pole. The 911 operator broadcast this information to the officers, including the officer who eventually stopped the defendant.
“Because the basis of [the witness‘s] knowledge was [her] own personal observation” and “[she] gave [her] true name to the police . . . [the witness‘s] information more than satisfied both the basis of knowledge test and the veracity test.” Lopes, 455 Mass. at 156. The witness‘s tip met the Commonwealth‘s burden to establish reasonable suspicion for the investigatory stop. See id. (information based on personal knowledge from
Judgments affirmed.
By the Court (Singh, Hershfang & Wood, JJ.1),
Clerk
Entered: July 27, 2026.