Originally Posted by
Kelly Slater
Seven years is the American "Statute of Limitations."
"Statute of Limitations" is something quite different. In the US, anyway, It's the time after the commission of a crime after which you can no longer be prosecuted for that crime. Times and crimes vary from State to State, generally, there is no Statute of Limitations on serious offenses like Murder, you could be prosecuted as long as you're still alive.
More to the subject at hand, there is no period of time after whcih convictions drop off your record. Some convictions you may be able to have expunged, the conditions for that vary, but if a conviction hasn't been expunged, it stays for life.