Legal Juice

Here's a wacky current Minnesota law I stumbled upon:

609.294 Bestiality.

Whoever carnally knows a dead body or an animal or bird is guilty of bestiality, which is a misdemeanor. If knowingly done in the presence of another the person may be sentenced to imprisonment for not more than one year or to payment of a fine of not more than $3,000 or both.

I have several questions. Exactly why would would having sex with a dead PERSON fall under the bestiality law? What kind of mind would conceive of a person having sex with a bird? Is this even possible? (Please, don't answer that.) The Juice is at a loss. Here's a link to the statute.