MeasuringAt the sceneMIU
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Our Staff

Led by the Director, the SIU consists of approximately 90 staff members who bring with them a wide breadth of knowledge and experience in both investigative and administrative roles.

The SIU’s civilian investigators are central to the work of the Unit. In compliance with the Ontario Police Services Act and internal operating procedures, investigators conduct independent investigations into incidents under the SIU’s mandate. 


Fourteen lead investigators are stationed at the SIU’s headquarters in Mississauga and boast an extensive background in both investigation and investigative interviewing. Of these investigators, 80% have civilian backgrounds with investigative experience gained at agencies like the College of Physicians and Surgeons of Ontario, the Ontario Ministry of Labour, Canada Post, the Canadian Security Intelligence Service and the Alcohol and Gaming Commission of Ontario. 

In addition to the lead investigators, the SIU employs as-required investigators who are based throughout the province and are called on to assist with investigations based on regional needs. SIU investigators canvas the area for video sources and for those who may have information about the incident. As well, the investigators interview involved police officers, injured parties and witnesses. If it’s case where someone has died, investigators notify next of kin and attend an autopsy. 

Forensic Investigators

Criminal investigations cannot be competently conducted without the application of the highest quality of forensic science. Forensic investigators complement the investigative process by providing technical advice and assistance to investigators about the potential significance of physical evidence. 

The forensic team is responsible for gathering, evaluating and protecting the physical evidence at the scene of an incident.  Leading-edge digital and video camera equipment and sophisticated surveying tools such as Total Station allow forensic investigators to record and objectively analyse all critical components of an incident scene. The investigators are also responsible for interpreting trace evidence and recording the autopsy process.  Forensic investigators have expertise in collision reconstruction, blood stain spatter analysis, scene surveying and firearm analysis.

Support Staff

The SIU is also supported by a Deputy Director, an Executive Officer, Business Operations  Manager, Affected Persons Manager, Communications Coordinator, Outreach Coordinator, Training Coordinator, and an administrative staff composed of transcribers, central registry clerk, budget and inventory clerks, information technology analyst and administrative assistants.