Okla. Stat. tit. 44, § 212
Any officer or enlisted person of the state military forces acting in the line of duty shall be immune from personal liability for any acts that include the use of deadly force in self-defense or in defense of another person from what the member reasonably believes is the imminent use of unlawful deadly force.
Laws 1935, SB 235, p. 92, § 8, emerg. eff. April 19, 1935; Amended by Laws 1985, HB 1360, c. 96, § 2, eff. November 1, 1985; Amended by Laws 2019, HB 2362, c. 408, § 3, eff. October 1, 2019 (superseded document available); Amended by Laws 2021, HB 2508, c. 12, § 7, emerg. eff. April 13, 2021 (superseded document available).