Domestic abuse; directing law enforcement officers to conduct interviews regarding domestic abuse; codification; effective date.

HB 4151 requires Oklahoma law enforcement to interview family members before finalizing death investigations when a decedent has an identifiable history of domestic abuse and specific factors are present (e.g., premature death, scene resembling suicide, history of coercive control, or strangulation). It mandates current domestic abuse training for investigators, allows family access to victim services during investigations, and gives families the right to request investigation records if a case is closed without a homicide finding. The bill also specifies 10 conditions triggering autopsy requests and clarifies that it doesn’t override existing investigation discretion or impose new liability on agencies. It applies to deaths involving domestic abuse victims and takes effect November 1, 2026.