Beasts of the Law

A quiz about three animal-related figures of legal speech (all of which had been mentioned on this blog in years past). Fill in the blanks, and provide the explanation the courts offer:

1. "A red ___ case."
2. "Presumptions may be looked on as the __ of the law."
3. "Judges are not like __."

Note that it's not enough that judges actually aren't like, say, eels; it has to be a preexisting legal phrase.