The proposed bill, General Assembly Proposed Bill No. 5596, seeks to amend section 53a-20 of the general statutes to fully adopt the "castle doctrine." This legal principle asserts that a person has the right to use deadly physical force to prevent or terminate an unlawful entry into their dwelling or to stop the commission of arson or violent crimes by a trespasser. The bill introduces a rebuttable presumption that if a homeowner believes that such force is necessary, that belief is considered reasonable.

The key insertion in the bill is the establishment of this rebuttable presumption regarding the homeowner's belief in the necessity of using deadly force. There are no deletions from the current law mentioned in the text. The intent of the bill is to clarify and strengthen the legal protections for homeowners in situations involving unlawful entry and potential threats to their safety.