Tex. Code of Criminal Procedure § 58.153

(a) A victim who completes a pseudonym form and returns the form to the law enforcement agency investigating the offense may not be required to disclose the victim's name, address, and telephone number in connection with the investigation or prosecution of the offense.

(b) A completed and returned pseudonym form is confidential and may not be disclosed to any person other than the victim identified by the pseudonym form, a defendant in the case, or the defendant's attorney, except on an order of a court. The court finding required by Article 58.154 is not required to disclose the confidential pseudonym form to the victim identified by the pseudonym form, the defendant in the case, or the defendant's attorney.

(c) If a victim completes a pseudonym form and returns the form to a law enforcement agency under Article 58.152(a), the law enforcement agency receiving the form shall:

(1) remove the victim's name and substitute the pseudonym for the name on all reports, files, and records in the agency's possession;

(2) notify the attorney representing the state of the pseudonym and that the victim has elected to be designated by the pseudonym;

(3) provide to the victim a copy of the completed pseudonym form showing that the form was returned to the law enforcement agency; and

(4) maintain the form in a manner that protects the confidentiality of the information contained on the form.

(d) An attorney representing the state who receives notice that a victim has elected to be designated by a pseudonym shall ensure that the victim is designated by the pseudonym in all legal proceedings concerning the offense.