Singapore Court Penalizes Lawyers for Submitting Fictitious AI-Generated Case Authorities in Landmark Integrity Ruling

Singapore court orders S$10,000 in costs against lawyers who cited fictitious AI cases. Justice Mohan warns of sea change in legal professional responsibility.

By: AXL Media

Published: Mar 6, 2026, 3:21 AM EST

Source: The information in this article was sourced from CNA

The High Cost of Algorithmic Deception in Court

The Singapore judiciary has issued a stern warning to the legal profession regarding the unchecked use of generative artificial intelligence by imposing significant financial penalties on two local solicitors. Justice S Mohan ordered Mr. Goh Peck San and Mr. Amarjit Singh Sidhu to pay S$5,000 each in personal costs after they submitted closing arguments containing two entirely fictitious case authorities. The court rejected a lower joint settlement offer of S$1,500, with the judge characterizing that amount as plainly inadequate given the gravity of the misconduct. This ruling marks a pivotal moment in Singapore’s legal history, signaling that the court will hold advocates strictly accountable for the digital tools employed under their supervision.

A Chain of Failure in Professional Oversight

The emergence of the fraudulent citations revealed a breakdown in internal law firm protocols and a lack of direct supervision over junior staff. According to court documents, Mr. Singh had assigned the initial research and drafting tasks to a paralegal who has since departed the firm and remains uncontactable. While Mr. Singh claimed he had previously instructed staff not to use AI tools like ChatGPT, he admitted to overlooking the fake cases during his review of the draft submissions. Justice Mohan noted that the failure of both the lead counsel and his assistant to verify the existence of these authorities indicated a lax system of control, particularly when the citations could not be found on standard legal databases like LawNet.

The Sea Change of Generative Technology

The judgment characterized the integration of generative AI into the legal sector as a sea change that necessitates a commensurate evolution in ethical standards. Justice Mohan emphasized that while technological advancement is not inherently unwelcome, it must not come at the expense of the professional responsibility that defines the Bar. According to the judge, AI should only ever play the role of a handmaiden to the lawyer, who remains the ultimate guarantor of the accuracy of materials placed before the court. The ruling underscored that the provision of fictitious authorities wastes judicial resources and risks leading the court into erroneous decisions that could result in a miscarriage of justice.