Tex. Est. Code § 1157.006
If evidence of a claim is lost or destroyed, the claimant or the claimant's representative may make an affidavit to the fact of the loss or destruction. The affidavit must state:
Added by Acts 2011, 82nd Leg., R.S., Ch. 823 (H.B. 2759), Sec. 1.02, eff. January 1, 2014.