; or (B) prevent the imminent commission of a forcible felony. (2) No duty to retreat; right to stand your ground For purposes of paragraph (1), an individual who is at risk of becoming a victim of a forcible felony— (A) shall not be required to first seek retreat as the preferred alternative to using force to act in self-defense; and (B) may use any means necessary to defend himself or herself if the individual— (i) is not engaged in criminal activity; and (ii) is in a place where the individual has a right to be. (d) Burden of proof The defendant has the burden of proving a defense under this section by a preponderance of the evidence. . (2) Table of sections The table of sections for chapter 1 of title 18, United States Code, is amended by adding at the end the following: 28. Affirmative defense for certain criminal violations. . (b) Effective date; applicability The amendments made by subsection (a) shall— (1) take effect on the date of enactment of this Act; and (2) apply to any prosecution commenced after the date of enactment of this Act.