Hysteria aside, what happens when a court subpoena demands someone hand over something they don't have? Does the person just say, "I don't have it." and that's that? What if they lie about not having it?
Ah, in Canada it's 5 years. "Punishment can range from the person being imprisoned for a period of less than five years or until the person complies with the order or fine."
1. prove they have the evidence.
or
2. prove they destroyed or concealed it.
Greatest quote I've ever heard: "it's not what they know, it's what they can prove in court"