News Release

SIU Appealing for Witnesses to Oshawa Collision between Civilian Vehicle and Police Cruiser

Case Number: 23-OVI-202   

Mississauga, ON (28 May, 2023) ---
The province’s Special Investigations Unit is investigating the circumstances surrounding a collision in Oshawa yesterday that resulted in a serious injury to a 33-year-old woman.

Preliminary information suggests the following:
  • On the evening of May 27, 2023, Durham Regional Police Service officers attended to an incident on Harmony Road, between Columbus Road East and Howden Road East.  
  • A woman took off in a vehicle, and officers followed.
  • At approximately 6:20 p.m., the vehicle became involved in a collision with a police cruiser on Columbus Road East, between Harmony Road North and Wilson Road North.
  • The woman was taken to hospital for treatment of a serious injury.

Three investigators and two forensic investigators have been assigned to the case. 

The SIU is urging anyone who may have information about this investigation, including video or photos, to contact the lead investigator at 1-800-787-8529 or online at:

If you or someone you know is an affected person in need of support, please call the Affected Persons Program General Referral Line at 1-877-641-1897 or click here for more information:

The SIU is an independent government agency that investigates the conduct of officials (police officers as well as special constables with the Niagara Parks Commission and peace officers with the Legislative Protective Service) that may have resulted in death, serious injury, sexual assault and/or the discharge of a firearm at a person. All investigations are conducted by SIU investigators who are civilians. Under the Special Investigations Unit Act, the Director of the SIU must

  • consider whether the official has committed a criminal offence in connection with the incident under investigation
  • depending on the evidence, cause a criminal charge to be laid against the official where grounds exist for doing so, or close the file without any charges being laid
  • publicly report the results of its investigations

Lisez ce communiqué en français.

Monica Hudon,
SIU Communications/Service des communications, UES