Texas Code of Criminal Procedure - CRIM P Art. § 18B.357. Warrant Issued in This State: Authentication of Records by Service Provider

If an authorized peace officer serving a warrant under Article 18B.355 also delivers an affidavit form to the provider of an electronic communications service or the provider of a remote computing service responding to the warrant, and the peace officer also notifies the service provider in writing that an executed affidavit is required, the service provider shall verify the authenticity of the customer data, contents of communications, and other information produced in compliance with the warrant by including with the information an affidavit form that: