IC 35-41-3-2
Use of force to protect person or property
Sec. 2. (a) A person is justified in using reasonable force against another person to protect the person or a third person from what the person reasonably believes to be the imminent use of unlawful force. However, a person:
(1) is justified in using deadly force; and
(2) does not have a duty to retreat;
if the person reasonably believes that that force is necessary to prevent serious bodily injury to the person or a third person or the commission of a forcible felony. No person in this state shall be placed in legal jeopardy of any kind whatsoever for protecting the person or a third person by reasonable means necessary.
(b) A person:
(1) is justified in using reasonable force, including deadly force, against another person; and
(2) does not have a duty to retreat;
if the person reasonably believes that the force is necessary to prevent or terminate the other person's unlawful entry of or attack on the person's dwelling, curtilage, or occupied motor vehicle.
(c) With respect to property other than a dwelling, curtilage, or an occupied motor vehicle, a person is justified in using reasonable force against another person if the person reasonably believes that the force is necessary to immediately prevent or terminate the other person's trespass on or criminal interference with property lawfully in the person's possession, lawfully in possession of a member of the person's immediate family, or belonging to a person whose property the person has authority to protect. However, a person:
(1) is justified in using deadly force; and
(2) does not have a duty to retreat;
only if that force is justified under subsection (a).