When a regulatory body begins investigating your business or professional practice, the communications you have with your lawyer become extraordinarily valuable. These communications often contain your most candid assessments of what happened, your concerns about potential liability, and your strategies for responding to the regulator's inquiries. The legal system has long recognized that people need to be able to speak frankly with their lawyers without fear that those conversations will later be used against them. This protection, known as solicitor-client privilege, forms one of the most fundamental principles in Canadian law and serves as a cornerstone of the relationship between lawyers and their clients across every province and territory.
Solicitor-client privilege exists because the administration of justice depends on people being able to obtain legal advice. If clients feared that their lawyers might be compelled to reveal what was said in confidence, they would hesitate to disclose all relevant facts. Lawyers, in turn, could not provide accurate advice without complete information. The entire system of legal representation would break down. Canadian courts have consistently described this privilege as a principle of fundamental justice, deserving the highest protection. Unlike many other legal protections that can be overridden by competing interests, solicitor-client privilege can only be set aside in the most exceptional circumstances, and even then, courts approach any erosion of the privilege with extreme caution.