Well when I used to judge surfing comps we used to have a head judge ( i guess the same as an ajudicator) He would check the scores after each wave and if there was a variance he would have a quick chat with the judge to find out how they arrived at that score.
I am not saying check the sheets after each round but perhaps after each fight check the scores and if there is any major discrepencies ask the judge in question how they arrived at that score.
You could also keep track of each judges performance maybe on a simple spread sheet.. total rounds judges, correct scores etc perhaps a note of who fought any glaring errors etc... and that way at least you can keep records of how a judge or judges are performing. Also help to show any patterns that may develop i.e favouring a certain fighter or camp or a prefrence for certain techniques...
You couuld also use this information to review judging performances later by video etc..
What do you think of that Scotty?