Behind the Story: Investigating lapses in Canada’s food safety system

The revelation, when it happened, was surprising. And disturbing.At the outset of The Globe and Mail’s four-month investigation into this summer’s listeria outbreak involving plant-based milks sold under the Silk and Great Value brands – which killed three people and left others seriously harmed – public-health officials said they had traced its origin to a production facility in Pickering, Ont.