Mr. Speaker, let me quote: “Members are expected to refrain from discussing matters before the courts, or under judicial consideration, in order to protect those involved in a court action or judicial inquiry against any undue influence through the discussion of the case. This practice is referred to as the sub judice convention and it applies to debate, statements and Question Period.” Those are the words of the hon. Peter Van Loan, May 11, 2015.
In the House of Commons on October 18th, 2018. See this statement in context.