News Release
SIU Concludes Investigation into Alliston Arrest
Case Number: 25-PCI-181
In the morning of May 5, 2025, OPP officers were dispatched to a house in Alliston after an individual called police to report that a family member was causing a disturbance and needed to be removed from the home. The officers encountered the person of interest, a 38-year-old man, in the living room and asked him to position himself against a wall. An officer explained that there was a warrant in effect for his arrest. The man denied that was accurate and began to resist. Officers forced him to the floor, the man landing on his front. He continued to struggle against the officers’ efforts to maneuver his arms behind the back. One officer drive-stunned the man in the back, and another officer kneed him several times in the left side. The man was handcuffed. At hospital, he was diagnosed with two left-sided fractured ribs. 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 arrest and injuries.
Full Director’s Report (with Incident Narrative, Evidence, and Analysis & Director’s Decision): https://www.siu.on.ca/en/directors_reports.php.
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.
Monica Hudon, siu.media@ontario.ca
SIU Communications/Service des communications, UES