A Special Investigations Unit mobile command centre is seen in this file photo. (Photo: SIU)

Ontario’s police watchdog agency has charged a Halton police officer following a crash while chasing a stolen Hummer over a year ago in Mississauga.

The Special Investigations Unit says the crash happened on March 12, 2025, around 8:30 a.m. at Winston Churchill Boulevard and Lakeshore Road East, on the border of Mississauga and Oakville.

Officers with the Halton Regional Police Service had been investigating the theft of a Kia Sedona from a home in Oakville that also involved a stolen GMC Hummer, the SIU says.

Investigators say the drivers of both vehicles fled the scene and officers attempted to stop them.

Police gave chase led by Sgt. David Joseph, and the pursuit took officers through Oakville and Mississauga.

That’s when the driver of the Hummer was involved in a collision with a diesel fuel truck tractor-trailer at Winston Churchill Boulevard and Lakeshore Road East.

The 26-year-old driver of the Hummer was arrested and rushed to hospital with a serious injury, the SIU says.

More than a year later, the SIU now says that Joseph has been charged with dangerous operation of a conveyance causing bodily harm. The accused is scheduled to make a court appearance in Milton on Nov. 23.

Unconfirmed social media reports at the time of the incident indicated the Hummer was being driven on three wheels as it fled from police cruisers moments before the crash. Police told INSAUGA Canada that the stolen vehicle was unoccupied as it sat running to warm up in the driveway of the Oakville home just prior to being taken.

The SIU is Ontario’s police watchdog agency that investigates police incidents in Ontario involving death, serious injury, the discharge of a firearm, or allegations of sexual assault.


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