In a decision that should unsettle every practising lawyer in England and Wales, the Upper Tribunal has delivered a stark warning: if you put fiction before a court, you should expect consequences. The judgment cited as [2026] UKUT 00081 (IAC) is already being talked about as a case on artificial intelligence. It is not. It is about professional discipline, and a profession that has grown a little too comfortable cutting corners.
The facts are almost surreal. Legal representatives cited authorities that did not exist. Not obscure cases or minor errors, but entirely fictitious decisions. What might once have been dismissed as careless drafting now reads as something more serious: a system beginning to rely on tools that sound authoritative without being accurate.
The Tribunal refused to let technology take the blame. This was not about AI. It was about lawyers forgetting the most basic rule of the profession: do not mislead the court. Whether an error comes from a junior fee-earner, a template, or a machine is beside the point. The responsibility sits squarely with the solicitor who signs off on the work.
What is striking is where the Tribunal places culpability. The supervisor, not the junior, bears the greater burden. Failing to check and verify is treated as more serious than making a mistake oneself. That is a sharp reminder that supervision is not a formality. It is a duty.
Feeding client documents into open AI platforms is not harmless efficiency. It risks breaching confidentiality and waiving privilege.
The judgment also exposes a more uncomfortable reality. Modern AI tools are capable of producing answers that look entirely credible while being completely wrong. They do not appear flawed. They appear confident. And that is precisely why they are dangerous in a legal context, where accuracy is not optional.
There is another risk that many practitioners have overlooked. Feeding client documents into open AI platforms is not harmless efficiency. It risks breaching confidentiality and waiving privilege. In a profession built on trust, that is not a technical misstep. It is a serious ethical failure.
The Tribunal has responded by tightening the rules. Lawyers are now required to confirm that the authorities they cite exist and actually support the arguments being made. It is a small procedural change with significant implications. The court is no longer willing to assume that what is put before it has been properly checked. For clients, particularly in immigration cases, the stakes are high. These are not abstract errors. They affect real people, often those least equipped to challenge them. If the system tolerates inaccuracy, it risks losing the confidence of those it is meant to protect.
As a practising lawyer, this decision feels overdue. The profession has been edging towards a culture where convenience risks overtaking care. This judgment pulls it back. It reminds us that the standard has not changed.
The law does not accept “almost right”. It demands that it is right.
The writer is a lawyer based in London.