News Release

SIU Investigating After Halton Police Officer Shot ARWEN at Man in Oakville

Case Number: 23-OFP-268   

Other News Releases Related to Case 23-OFP-268

SIU Concludes Investigation into ARWEN Discharge by Officer in Oakville

Mississauga, ON (17 July, 2023) ---
The province’s Special Investigations Unit is investigating after a Halton Regional Police officer discharged an Anti-Riot Weapon Enfield (ARWEN) at a 22-year-old man in Oakville.

Preliminary information suggests the following:
  • At approximately midnight on July 14, 2023, officers were called to a residence on MacDonald Road in relation to a dispute.
  • Officers were on scene and the man barricaded himself in the residence.
  • There was an interaction, and one officer discharged an ARWEN at the man.
  • He was taken to hospital for assessment. The man was not seriously injured.
One subject official and seven witness officials have been designated at this time.

The man did not sustain any serious injury, but the SIU’s mandate was invoked because a police officer discharged an ARWEN, which is classified as a firearm. Under the Special Investigations Unit Act, a firearm is defined as a barreled weapon from which any shot, bullet or other projectile can be discharged and that is capable of causing serious bodily injury or death to a person.

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.

Kristy Denette,
SIU Communications/Service des communications, UES