Establishing that an occupant of a dwelling is justified in using any degree of physical force against another person when the other person has made an unlawful entry into the dwelling, and when the occupant has a reasonable belief that the other person has committed a crime in the dwelling in addition to the unlawful entry or is committing or intends to commit a crime against a person or property in addition to the unlawful entry; establishing that a person acting in accordance with the Act is immune from certain criminal prosecution; etc.