News Release

No Charges to Issue in Relation to Broken Kneecap Sustained by Man During Arrest in Alliston

Case Number: 24-PCI-496   

Mississauga, ON (8 May, 2026) ---
In the evening of November 17, 2024, a building superintendent in Alliston had called 911 to report a dispute between a husband and wife that included yelling, doors slamming and children screaming. OPP officers arrived at the residence, located in the basement of the building, and shortly after arrested a man for mischief. He was handcuffed behind the back. An officer told the man that he would be transported to the police station and began to escort him out of the building. The man walked quickly and the officer repeatedly told him to slow down. As the pair exited the building onto a parking lot, the officer yanked on the man’s left arm from behind to slow him down and change his path of travel towards a police cruiser. The man was jerked backwards momentarily and then resumed his forward progress, at which point the officer yanked on the limb again. The man went to ground and broke his left kneecap in the process. On his assessment of the evidence, SIU Director Joseph Martino determined there were no reasonable grounds to believe that an officer committed a criminal offence in connection with the man’s injury.
     
Full Director’s Report (with Incident Narrative, Evidence, and Analysis & Director’s Decision): https://www.siu.on.ca/en/directors_reports.php.

If you or someone you know has been negatively affected by an incident under SIU investigation and would like support, the Affected Persons Program is here to help. You can reach us at 1-877-641-1897. Support is free, confidential, and available 24/7, every day of the year.

The SIU is an independent government agency that investigates the conduct of officials (municipal, regional and provincial police officers, police officers with the Nishnawbe Aski Police Service, 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.media@ontario.ca
SIU Communications/Service des communications, UES