Vincent graduated from Dalhousie Law School and articled for Cooper, Sandler & West in 1996-1997. He was a researcher for Commissioner Fred Kaufman at “The Commission on Proceedings Involving Guy Paul Morin.”. He joined the downtown Toronto Crown Attorney’s Office in 1998. In 2004, he was tasked with providing legal advice to the Toronto Police Service Criminal Intelligence and Organized Crime Enforcement branches. That later became the MAG Guns and Gangs initiative. In 2007, continuing his role with the Ministry, he was also named counsel to the Firearm Investigation and Enforcement Services Directorate of the Canadian Firearm Program administered by the R.C.M.P.. He was promoted to General Counsel in 2017. He is now the team leader of the Gun and Gang Support Unit, a group tasked with assisting police agencies across Ontario tackling organized crime. He was awarded the title of King’s Counsel in 2023.

He has lectured extensively to police forces throughout Canada, the United States, and Mexico, as well as Judges, Crown Attorneys, and defence counsel on firearms, organized crime, search and seizure, and police use of force. He is recognized as a Subject Matter Expert on organized crime and firearms by the United Nations Office on Drugs and Crime (UNODC). He was the keynote speaker in Vienna at a meeting of the Organization of Security and Cooperation in Europe (OSCE) discussing the importance of tracing firearms. He is presently working with the UNODC and Interpol on some training initiatives to counter firearm trafficking in Africa and South America. He is also engaged in a project with the United Nations Interregional Crime and Justice Research Institute to counter the involvement of organized crime and terrorist groups in the trafficking of precious metals.