A joke I heard today.
You know why the Tennessee police can't solve a murder case ?
Cause there are no dental records and all the DNA samples are the same.

Reminds me of a joke I heard the first week I moved to Cincinnati.
Man 1- "Dude, I got arrested for smuggling books into Kentucky the other day!"
Man 2- "How did you get out so quick?"
Man 1- "I got off on a technicality... no one could prove they were books."
Tah dum dum. (err, yeah)