The term State has the meaning given the term in section 901 of title I of the Omnibus Crime Control and Safe Streets Act of 1968 ( 34 U.S.C. 10251 ). (8) Tribal law enforcement officer The term tribal law enforcement officer means any officer, agent, or employee of an Indian tribe, or the Bureau of Indian Affairs, authorized by law or by a government agency to engage in or supervise the prevention, detection, or investigation of any violation of criminal law. (9) Unit of local government The term unit of local government has the meaning given the term in section 901 of title I of the Omnibus Crime Control and Safe Streets Act of 1968 ( 34 U.S.C. 10251 ). (10) Deadly force The term deadly force means that force which a reasonable person would consider likely to cause death or serious bodily harm, including— (A) the discharge of a firearm