The following excerpt is from Subway Franchise Systems of Canada, Inc. v. Canadian Broadcasting Corporation, 2021 ONCA 26 (CanLII):
The defence of responsible communication will apply where the publication is on a matter of public interest, and the publisher diligently tried to verify the allegation taking into account: (a) the seriousness of the allegation; (b) the public importance of the matter; (c) the urgency of the matter; (d) the status and reliability of the source; (e) whether the plaintiff's side of the story was sought and accurately reported; (f) whether the inclusion of the defamatory statement was justifiable; (g) whether the defamatory statement’s public interest lay in the fact that it was made rather than its truth (“reportage”); and (h) any other relevant circumstances. Grant v. Torstar Corp., 2009 SCC 61,  3 S.C.R. 640, at para. 126.