Patrick Lavallée holds a law degree from the Université de Montréal. He was a member of the Barreau du Québec from 1991 to 1998. In 1999, he became a police officer and then taught police law to hundreds of students at John Abbott College from 2006 to 2015.

Very involved socially, he has received numerous honours, including the Queen Elizabeth II Diamond Jubilee Medal in 2013 for his commitment to environmental protection and the protection of fundamental rights.

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