On Monday, Montreal police said the Old Montreal fire that killed seven people in March 2023 is now being treated as a criminal investigation. Alongside police looking into persons of interest in the case, the Globe’s Montreal-based reporter Frédérik-Xavier Duhamel reported on the many safety violations in the burned-out building that Montreal and Quebec officials had known about for more than a decade. He uncovered a moratorium on enforcing evacuation route violations that had been in place since 2018, which were quietly lifted in the days after the fire.

His investigations are trying to answer: how did this happen and who is ultimately responsible for the deaths of seven victims and the safety of Montrealers?

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