Firearms and Ammunition - As introduced, lowers the standard for the use of deadly force to protect property; specifies that deadly force does not include the display of a weapon, the brandishing of a weapon, or the use of force in circumstances that do not result in death or serious bodily injury. - Amends TCA Title 39.

SB 1407 would amend Tennessee law to allow the use of deadly force to protect property, such as preventing burglary, theft, or damage to livestock, under specific conditions. It directly affects property owners and occupants who face intruders or property crimes. Key changes include lowering the standard for deadly force (requiring only a reasonable belief that force is necessary to stop the crime), defining "deadly force" to exclude merely displaying or brandishing a weapon, and updating legal references to include property protection under self-defense statutes. The bill would not permit deadly force if less lethal options are available to protect the property or if the force used wouldn’t cause death or serious injury.