Nice post. 2 things that really stick out from the decision, in my mind:
http://www.1stcoa.courts.state.tx.us/opini...OpinionId=81309
first,
" Generally, if a witness has testified to material, inculpatory facts against a defendant and, after the verdict but before a motion for new trial has been ruled upon, the witness makes an affidavit that he testified falsely, a new trial should be granted.
In our case, Dr. Dietz did not make an affidavit that he testified falsely. However,because the State stipulated that Dr. Dietz would testify that his testimony was in error, thereis no credibility issue requiring an affidavit. See Dougherty v. State, 745 S.W.2d 107, 107(Tex. App.—Amarillo 1988), aff’d, 773 S.W.2d 320 (Tex. Crim. App. 1989) (stating thatState was bound by its stipulation).
Close Williams v. State, 375 S.W.2d 449, 451 (Tex. Crim. App. 1964). The exceptions to this rule—such as, when the recanting witness is an accomplice, or the recantation is found to be incredible in light of the evidence, or the recantation has been coerced—do not apply in the present case. See Villarreal v. State, 788 S.W.2d 672, 674 (Tex. App.—Corpus Christi 1990, pet. ref’d) (applying general rule to determine that, because State offered no evidence to controvert recantation or testimony, denial of motion for new trial was abuse of discretion). We note that this rule does not require that the State have knowledge that the testimony was false. We review the record to determine whether the State used the false testimony and, if so, whether there is a reasonable likelihood that the false testimony could have affected the judgment of the jury. See Ramirez v. State, 96 S.W.3d 386, 394-95 (Tex. App.—Austin 2002, pet. ref’d).
second
"Five mental health experts testified that appellant did not know right from wrong or that she thought what she did was right. Dr. Dietz was the only mental health expert who testified that appellant knew right from wrong. Therefore, his testimony was critical to establish the State’s case. Although the record does not show that Dr. Dietz intentionally lied in his testimony, his false testimony undoubtedly gave greater weight to his opinion.
On the other hand, had the jury known prior to their deliberations in the guilt-innocence phase of the trial, that Dr. Dietz’s testimony regarding the “Law & Order” episodewas false, the jury would likely have considered him, the State’s only mental health expert,to be less credible. "