Marks was working a night shift on December 31, 1956, when police forces across the city united to become one.
He served as chief of the Metro Toronto Police from 1984 to 1989 succeeding Jack Ackroyd.
Marks helped mould the force's commitment to building community and fostering diversity.
He died from peritoneal mesothelioma, a disease caused by exposure to asbestos, at the age of 80 in 2007.
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