Protecting One’s Home A person may defend his or her home against anyone who attempts to enter in a violent manner intending violence to any person in the home . The amount of force that may be used in resisting such entry is limited to that which would appear necessary to a reasonable person in the same or similar circumstances to resist the violent entry . One is not bound to retreat, even though a retreat might safely be made . One may resist force with force, increasing it in proportion to the intruder's persistence and violence, if the circumstances apparent to the occupant would cause a reasonable person in the same or similar situation to fear for his or her safety . The occupant may use a firearm when resisting the intruder's attempt to commit a forcible and life-threatening crime against anyone in the home provided that a reasonable person in the same or similar situation would believe that (a) the intruder intends to commit a forcible and life-threatening crime; (b) there is imminent danger of such crime being accomplished; and (c) the occupant acts under the belief that use of a firearm is necessary to save himself or herself or another from death or great bodily injury . Murder, mayhem, rape, and robbery are examples of forcible and life-threatening crimes . Any person using force intended or likely to cause death or great bodily injury within his or her residence shall be presumed to have held a reasonable fear of imminent peril of death or great bodily injury to self, family, or a member of the household when that force is used against another person, not a member of the family or household, who unlawfully and forcibly enters or has unlawfully and forcibly entered the residence and the person using the force knew or had reason to believe that an unlawful and forcible entry had occurred . Great bodily injury means a significant or substantial physical injury . (Pen . Code, § 198 .5 .) NOTE: If the presumption is rebutted by contrary evidence, the occupant may be criminally liable for an unlawful assault or homicide . 9 Defense of Property The lawful occupant of real property has the right to request a trespasser to leave the premises . If the trespasser does not do so within a reasonable time, the occupant may use force to eject the trespasser . The amount of force that may be used to eject a trespasser is limited to that which a reasonable person would believe to be necessary under the same or similar circumstances