Sec. 1. (a) If a defendant is found guilty in a capital felony case in which the state does not seek the death penalty, the judge shall sentence the defendant to life imprisonment or to life imprisonment without parole as required by Section 12.31, Penal Code.

(b) A defendant who is found guilty of an offense under Section 19.03(a)(9), Penal Code, may not be sentenced to death, and the state may not seek the death penalty in any case based solely on an offense under that subdivision.