Tex. Code of Crim. Proc. Article 24.21
Stating Bail in Subpoena

24.01
Issuance of Subpoenas 24.02
Subpoena Duces Tecum 24.03
Subpoena and Application Therefor 24.04
Service and Return of Subpoena 24.05
Refusing to Obey 24.06
What Is Disobedience of a Subpoena 24.07
Fine Against Witness Conditional 24.08
Witness May Show Cause 24.09
Court May Remit Fine 24.10
When Witness Appears and Testifies 24.11
Requisites of an “Attachment” 24.011
Subpoenas 24.12
When Attachment May Issue 24.13
Attachment for Convict Witnesses 24.14
Attachment for Resident Witness 24.15
To Secure Attendance Before Grand Jury 24.16
Application for Out-county Witness 24.17
Duty of Officer Receiving Said Subpoena 24.18
Subpoena Returnable Forthwith 24.19
Certificate to Officer 24.20
Subpoena Returnable at Future Date 24.21
Stating Bail in Subpoena 24.22
Witness Fined and Attached 24.23
Witness Released 24.24
Bail for Witness 24.25
Personal Bond of Witness 24.26
Enforcing Forfeiture 24.27
No Surrender After Forfeiture 24.29
Uniform Act to Secure Rendition of Prisoners in Criminal Proceedings 24.111
Hearing Required Before Issuance of Certain Writs of Attachment 24.131
Notification to Department of Criminal Justice 24.221
Affidavit Regarding Confinement 24.222
Hearing During Confinement of Witness