Tex. Civil Practice and Remedies Code § 22.024

After notice and an opportunity to be heard, a court may compel a journalist, a journalist's employer, or a person with an independent contract with a journalist to testify regarding or to produce or disclose any information, document, or item or the source of any information, document, or item obtained while acting as a journalist, if the person seeking the information, document, or item or the source of any information, document, or item makes a clear and specific showing that:

(1) all reasonable efforts have been exhausted to obtain the information from alternative sources;

(2) the subpoena is not overbroad, unreasonable, or oppressive and, when appropriate, will be limited to the verification of published information and the surrounding circumstances relating to the accuracy of the published information;

(3) reasonable and timely notice was given of the demand for the information, document, or item;

(4) in this instance, the interest of the party subpoenaing the information outweighs the public interest in gathering and dissemination of news, including the concerns of the journalist;

(5) the subpoena or compulsory process is not being used to obtain peripheral, nonessential, or speculative information; and

(6) the information, document, or item is relevant and material to the proper administration of the official proceeding for which the testimony, production, or disclosure is sought and is essential to the maintenance of a claim or defense of the person seeking the testimony, production, or disclosure.