In Texas it is presumed that deadly force was reasonably necessary if it is used against an individual who was unlawfully or forcibly entering or entered into an occupied home, business, or vehicle or is attempting to forcibly remove another against his or her will from an occupied home, business, or vehicle. Deadly force is also presumed to be justified to prevent the commission or attempted commission of murder, aggravated kidnapping, sexual assault, aggravated sexual assault, robbery and aggravated robbery.
In Texas if a person is present in any place where they have a right to be, they have no duty to retreat and have the right to use force, including deadly force, if they reasonably believe that it is necessary to prevent death or serious bodily injury to themselves or to prevent the commission of murder, aggravated kidnapping, sexual assault, aggravated sexual assault, robbery or aggravated robbery.
Texas law allows a person to use force in the protection of property to prevent or terminate anothers trespass or other unlawful interference with the possession of real or personal property. Deadly force can be used in Texas when the crime against property is classified as arson, burglary, robbery, criminal mischief at night or theft at night. Deadly force may also be used to prevent a person from fleeing with property immediately after the commission of a burglary, robbery, aggravated robbery, or theft during the nighttime if the actor believes that the property cannot be recovered by any other means or the use of force other than deadly force would expose the person to a substantial risk of death or serious bodily injury.