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The mandate for the independent Commission is set out under the authority of the Government of Canada and the Government of Nova Scotia. The details of the mandate are written in official documents known as Orders in Council (OICs) which provide the guidelines and boundaries for the Mass Casualty Commission to proceed with its work.

The Commission mandate includes the following:

To inquire into what happened and make findings on:

  • The causes, context and circumstances giving rise to the April 2020 mass casualty;
  • The responses of police, including the Royal Canadian Mounted Police (RCMP), municipal police forces, the Canada Border Services Agency, the Criminal Intelligence Service Nova Scotia, the Canadian Firearms Program and the Alert Ready program;
  • The steps taken to inform, support and engage victims, families and affected citizens

To examine related issues including:

  • The role of gender-based and intimate partner violence;
  • Access to firearms;
  • Prior interactions and relationship of the perpetrator with the police and social services;
  • Police actions;
  • Communications with the public during and after the event;
  • Communications between and within law enforcement agencies and other services;
  • Police policies, procedures and training;

To produce a report that:

  • Sets out lessons learned as well as recommendations that could help prevent and respond to similar incidents in the future

Mandate Overview

This outline represents the mandate of the Mass Casualty Commission.

Commission 004 OIC Graphic Aug 18

Orders in Council

The Orders in Council also provide guidance on how the Commissioners should carry out their work and the authority they can exercise in doing so.

The full Orders in Council can be viewed here:

Orders in Council

Order in Council: Government of Canada pdf


Order in Council: Government of Nova Scotia pdf

Some of the information within this website may be disturbing or upsetting for some visitors. This website deals with information about events that include gun and other violence, including gender-based violence and intimate partner violence. If you need to leave at any point, there is a “quick exit” button at the top of the website. This website also includes some suggested resources, should you be in need of support.

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