Using Case Law

In Canada (except Quebec), we operate under a Common Law system. This means that previously published legal decisions (“cases”) can inform adjudicators and influence how the law is applied.  

Case law establishes precedent, which is when one court’s decision becomes the standard for how other courts make decisions. Courts at the same level or below the court that decided the case must decide subsequent cases in line with that decision. A higher court (like the Supreme Court) can overrule a lower court (like Small Claims) and future Small Claims decisions would need to be in line with the Supreme Court decision. Decisions from the Supreme Court of Canada are binding on every court in the country, but typically don’t deal with Provincial legislation like the Residential Tenancies Act.

Small Claims decisions can influence each other, and often one decision will draw information and legal interpretations from others, but any Small Claims adjudicator can choose to decide differently from other cases if they believe there is a legal basis for their decision.

If you’re thinking about using case law during your hearing, be very cautious. Information (including cases from this guide) could be out of date by the time you read them, since new cases are decided every day. Additionally, tribunals like the Residential Tenancies Board are not obligated to follow case law in the same way that courts like Small Claims are (this doesn’t mean they don’t, it just means they don’t have to).

If you are thinking about using case law in your upcoming hearing, follow these steps to guide your research: