Dive summary:

• After 43 days of testimony in an Ontario Ministry of Labor hearing into the collapse of a parking deck into the Algo Centre Mall in Elliot Lake last June, killing two people, there is an unusual picture of a process that had seemed less complicated when the ministry charged two engineers in the incident.
• Among the oddities that lawyers for all parties have elicited from witnesses are the original design engineer supposedly wondering if plans had been followed, the provincial engineer not being brought into a investigation by the Labor Ministry of a claim about roof leaks and 2008 repairs being based on a nine-year-old condition report.
• The ministry has accused the former head of an engineering company and the company's engineering manager with endangering workers by saying the facility was structurally sound despite some noted problems.

From the article:

The project team selected a fix involving a waterproof membrane, asphalt topping and caulking/sealant, witnesses testified. ...