Can ChatGPT tell judges the ‘ordinary meaning’ of law?

While there is now a growing record of lawyers (mis)using AI, I could find only one reported case of a judge being accused of using it to write a judgement. This came from Brazil, where Federal Judge Jefferson Rodrigues is under investigation after one of his judgements was found to have been written using ChatGPT.

The National Judicial Council of Brazil—the oversight body for the judiciary—summoned him to explain how multiple legal errors came to be part of his decision.