A UK High Court judge has ruled that Laimonas Jakstys wore AI-connected smart glasses to receive real-time coaching during cross-examination in a January 2026 property dispute trial — marking one of the first publicly documented cases of a witness deploying wearable AI assistance to subvert judicial proceedings. Judge Raquel Agnello KC found that Jakstys, who was contesting the directorship of a company owning property in south-east London and Tonbridge, had been "assisted or coached in his replies to questions put to him during cross examination" via glasses covertly linked to his mobile phone.
The ruse unravelled after court observers noted Jakstys paused unusually long before answering questions and that an "interference" sound was emanating from near the witness stand. When ordered to remove the glasses, his phone immediately began audibly broadcasting a voice he attributed to an AI assistant — an admission that inadvertently confirmed AI involvement. Phone records further revealed multiple calls to a contact saved as "abra kadabra", whom Jakstys implausibly claimed was a taxi driver. Judge Agnello rejected these denials entirely, ruling the calls were live-streamed through the smart glasses throughout his testimony and rendering his evidence "unreliable and untruthful."
Courts have long banned mobile phones from witness boxes, but those rules assumed the threat looked like a phone. Smart glasses — which can pass for ordinary eyewear and relay audio via Bluetooth or built-in speakers — present a harder detection problem. In this case, it was audible interference and unusually long pauses that gave Jakstys away, not any technical screening by court staff.
The ruling gives judicial bodies a concrete precedent for revisiting device policies. Radio-frequency monitoring, already used in some secure facilities, is one option courts may now consider. More immediately, it hands opposing counsel a new line of questioning when a witness's answers seem oddly well-composed.