Art. 44.29. EFFECT OF REVERSAL    

(b) If the court of appeals or the Court of Criminal Appeals awards a new trial to a defendant other than a defendant convicted of an offense under Section 19.03, Penal Code, only on the basis of an error or errors made in the punishment stage of the trial, the cause shall stand as it would have stood in case the new trial had been granted by the court below, except that the court shall commence the new trial as if a finding of guilt had been returned and proceed to the punishment stage of the trial under Subsection (b), Section 2, Article 37.07, of this code. If the defendant elects, the court shall empanel a jury for the sentencing stage of the trial in the same manner as a jury is empaneled by the court for other trials before the court. At the new trial, the court shall allow both the state and the defendant to introduce evidence to show the circumstances of the offense and other evidence as permitted by Section 3 of Article 37.07 of this code.

(c) If any court sets aside or invalidates the sentence of a defendant convicted of an offense under Section 19.03, Penal Code, and sentenced to death on the basis of any error affecting punishment only, the court shall not set the conviction aside but rather shall commence a new punishment hearing under Article 37.071 or Article 37.0711 of this code, as appropriate, as if a finding of guilt had been returned. The court shall empanel a jury for the sentencing stage of the trial in the same manner as a jury is to be empaneled by the court in other trials before the court for offenses under Section 19.03, Penal Code. At the new punishment hearing, the court shall permit both the state and the defendant to introduce evidence as permitted by Article 37.071 or Article 37.0711 of this code.

(d) If any court sets aside or invalidates the sentence of a defendant convicted of an offense punishable as a capital felony under Section 12.42(c)(3), Penal Code, and sentenced to death on the basis of any error affecting punishment only, the court shall not set the conviction aside but rather shall commence a new punishment hearing under Article 37.072, as if a finding of guilt had been returned. The court shall empanel a jury for the sentencing stage of the trial in the same manner as a jury is to be empaneled by the court in other trials before the court for the offense of which the defendant was convicted. At the new punishment hearing, the court shall permit both the state and the defendant to introduce evidence as permitted by Article 37.072.