To determine whether an individual has a criminal history, ...
Use online "Texas Courts" for background checks. If unsuccessful, contact your state's courthouse via its website.

County Records
Criminal Case Files Civil, Family & Probate Cases County Court Law 1 Criminal and Civil Docket County Court Law 1 Family Docket

How to find court documents for a murder suspect? TX - Reddit
Check the online court records at the county's clerk of courts where the prosecution is taking place. Multiple courts are available but, you ...