Person Arrested After Suspected Fentanyl Found in Car on Arizona Interstate

Authorities seized 2.4 lbs of suspected fentanyl powder worth over $30,000 during a traffic stop near Flagstaff.

Published on Mar. 5, 2026

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The Coconino County Sheriff's Office arrested a 35-year-old woman after finding 2.4 lbs of suspected fentanyl powder worth an estimated $30,720 in her vehicle during a traffic stop along Interstate 40 near Flagstaff, Arizona. The suspect, Griselda Vences, was booked on charges of drug trafficking, drug paraphernalia possession, and introducing contraband into a correctional facility.

Why it matters

Fentanyl is a highly potent synthetic opioid that has driven a surge in overdose deaths across the United States. This seizure highlights the ongoing efforts by law enforcement to interdict the flow of illicit fentanyl, which is often trafficked across state lines and has devastating impacts on local communities.

The details

During a routine traffic stop on Interstate 40 near the Walnut Canyon Exit, a Coconino County Sheriff's K9 unit searched the vehicle after receiving consent and discovered 2.4 lbs of suspected fentanyl powder. Authorities estimated the street value of the seized drugs to be around $30,720. The driver, Griselda Vences, was arrested and booked into the Coconino County Detention Facility on charges related to drug trafficking, drug paraphernalia, and introducing contraband into a correctional facility.

  • The traffic stop occurred around 1:30 p.m. on Monday, March 5, 2026.

The players

Griselda Vences

A 35-year-old woman who was arrested and booked on charges related to the suspected fentanyl found in her vehicle.

Coconino County Sheriff's Office

The law enforcement agency that conducted the traffic stop and made the arrest.

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What’s next

The suspect, Griselda Vences, will face a judge who will determine whether to grant her bail as the case proceeds through the criminal justice system.

The takeaway

This incident underscores the ongoing battle against the opioid crisis, as law enforcement works to disrupt the supply of deadly drugs like fentanyl that are fueling a rise in overdose deaths across the country. The seizure of over $30,000 worth of suspected fentanyl highlights the scale of the problem and the importance of continued vigilance and interdiction efforts.