OPP Sergeant Margaret Eve was killed on Highway 401 when a truck struck her patrol vehicle during a traffic stop.
Her death was a major catalyst for the establishment of Ontario’s Move Over law in 2003
https://www.stthomastimesjournal.com/2015/07/31/chatham-kent-opp-sgt-marg-eve-was-first-female-opp-officer-killed-in-line-of-duty
https://opmf.ca/control.php?officer_id=38