Watching The Watchers: Judicial Limitations On The Use Of Surveillance Evidence

Surveillance evidence is among the most powerful tools available to a defence lawyer and their client. Correctly deployed, surveillance can be a fatal blow to a plaintiff's claim. Triers of fact, jurors particularly, cannot help but be impacted by surveillance evidence. Numerous studies show that visual memory retention far exceeds audio recall. Due to the power of surveillance evidence relative to cost, many insurers have at least some experience in obtaining this form of evidence. Since the Ontario Court of Appeal handed down its decision in Iannarella v Corbett, the tactical landscape for surveillance has changed and the use of surveillance evidence has been under court scrutiny.¹