Justice must be both done and seen to be done.
Apparently, however, when judges are hungry, they are much less likely to eg grant parole.
Today’s invention is therefore a way to lessen the large fluctuations which have been measured in judicial opinion.
Before passing judgement, lawyers could require a judge to self-administer an electronic test.
This would take the form of a games console which would run some perception/reaction tests and take a drop of blood to monitor blood glucose level (it might also be used to detect other substances).
If this, or the concentration test scores, had fallen below average for the individual, lawyers could ask that a court case be deferred until the judge had had lunch and a rest.