Adds a section to the Executive Law, to establish a new Office of Special Investigation within the Office of the Attorney General. This Office is tasked with investigating and, if warranted, prosecuting, any alleged criminal offense(s) committed by a police or peace officer while on or off duty where that offense results in the death of another individual. Furthermore, the Office of Special Investigation is required to issue a public report for each incident where the office initiates an investigation but declines to prosecute, or where a grand jury declines to return an indictment as well as a report six months after the law takes effect, and annually thereafter, providing information on the matters investigated and recommendations for reforms.