A person is justified in using deadly force against another to protect land or tangible, movable property. Art. 2.09. WHO ARE MAGISTRATES.In Texas, self-defense is a protected right under the law. A person is justified in using force against another when and to the degree the actor reasonably believes the force is immediately necessary. Communication. CLERKS AND COURT PERSONNEL MUST NOT ENGAGE IN THE UNAUTHORIZED PRACTICE OF LAW. Our experienced Houston criminal defense attorneys will fight to prove that your actions were justifiable under Texas law. When Is a Self-Defense Claim Not Permitted? Did not provoke the attack, and; were not engaged in a crime. If successful, self-defense is a complete defense to a criminal allegation. Texas law allows individuals to use force to protect themselves under certain circumstances.