Personally I think the discussion about AI use rather misses the more obvious failure at his job and illegal personal misogynistic bias Kemp displays.
I think it's a way to try and avoid accountability.
Oh dear, what a silly man I am (though v v important, naturally) I used a technology wrongly!
Nothing about the character assassination allowed of Peggie, totally irrelevant to the case. Nothing about the basic failures of legal understanding which display a lack of competence that should render him unfit to do his job.
Maybe he used AI but he's also misogynistic (which I said during the case not just after the judgement - wall of sad etc - very unequal standards applied to Upton and Peggie) and absolute rubbish at his job. The AI use is frankly the least worrying thing. At the very least he should be good enough at his job to fucking check any quotes AI spews out. We're better fact checkers on here, doing it for free and in our own time!