What happens if you break a law and are not even aware you broke one? What if you know that you are guilty but cannon afford what you need to bring to the priest for atonement? Some of the things we will encounter are examples of case law. Because it happened at least once to somebody, there is a law to deal with that particular case.

Leviticus 5

“If a person sins when he is a witness and does not testify when called, then he shall bear the guilt of his sin;