The Crown Attorney Office is in charge of prosecuting most criminal cases in Canada. For the most part the official and office are under the jurisdiction of provincial Attorneys General (Minister of Justice in Quebec). in charge of criminal cases at provincial level. They are spread out across the province by municipal districts (county, regional municipality, etc...). Larger centres like Toronto have several Crown Attorney Offices. The office report back to the provincial Attorney General or Minister of Justice.
In Quebec, British Columbia and Nova Scotia the Director of Public Prosecutions or Direction générale des poursuites publiques is responsible for criminal cases. For all other provinces the office is referred to as the Crown Attorney Office.
For federal criminal cases, the Public Prosecution Service of Canada is the responsible entity.
List of offices across Canada: