How it works
We show the evidence for every flag, and we tell you when we are not sure.
Searching finds the words. It cannot tell "the court must" from "the court must not", because the words are the same. It cannot tell "the judge decided X" from "the losing side argued X", because the words are the same. Those two mistakes are exactly how a lawyer ends up citing a case for something it never said.
We tested a word-matching rule on the same cases. Set it to catch as much as our check, and it certifies five times as many wrong citations. Set it to be as careful, and it misses half.
It reads a sentence and answers one small question with a probability: does this passage say that, or the opposite, or neither. And who is saying it, the court or a party. It does not write anything and it does not guess beyond what is on the page. When it is not sure, it says so, and we show you that.