(a) If a prosecution for a felony or misdemeanor, other than arson and murder, is commenced after the time limited by section 4501 or 4502 of this title, such proceedings shall be void.

(b) If a defendant knowingly and voluntarily waives the statute of limitations in writing and with the consent of the prosecution, the court shall have jurisdiction over the offense and the proceedings shall be valid. (Amended 2009, No. 99 (Adj. Sess.), § 1.)