The use of artificial intelligence (AI) in the legal system has raised concerns after it was discovered that fake case law submitted by an AI chatbot was used in a civil case in B.C. Supreme Court, marking Canada’s first case of AI inventing fake legal cases.
Lawyers Lorne and Fraser MacLean discovered that the opposing lawyer allegedly used AI chatbot ChatGPT to prepare legal briefs with non-existent cases, potentially impacting the outcomes of court judgments and eroding confidence in the legal system.
The incident has prompted warnings from legal observers and the Law Society of BC, urging lawyers to only use AI tools for drafting certain sentences and paragraphs, and to ensure accuracy and fact-checking in legal research.