A. “Necessary” means that no reasonably effective alternative to the use of force appeared to exist and that the amount of force used was reasonable to effect the lawful purpose intended.

B. “Homicide” is the killing of a human being by the act, procurement or omission of another, death occurring within three years and a day, and is either (1) murder, (2) manslaughter, (3) excusable homicide, or (4) justifiable homicide. (Ord. 1145-85 § 18, 1985.)