In EMS the most common crime I see (in hospitals and the field) is documentation related. Specifically when the EMT or nurse writes "18" for patient respiratory rate in the patient chart.
Seeing y'all's responses to the "are your relatives criminals" poll is cracking me up.
Criminality isn't a matter of getting arrested or convicted, or a particularly good marker of morality.
Depending on where you are, crossing the street wrong is a crime. If you're American and you've ever picked up a feather, you have probably committed a federal offense.
Not even gonna get into the fact that homosexuality is still a crime in places.
The point is that you're probably all criminals.