Whenever the holder of a certificate issued by a county board of education has been convicted of any sex offense as defined in Section 44010 or controlled substance offense as defined in Section 44011, the county board of education shall forthwith suspend the certificate. If the conviction is reversed and the holder is acquitted of the offense in a new trial or the charges against him or her are dismissed, the board shall forthwith terminate the suspension of the certificate. When the conviction becomes final or when imposition of sentence is suspended, the board shall forthwith revoke the certificate.