Bill No. 37, introduced by Senators Weaver and Moore, establishes new provisions for the Oklahoma State Bureau of Investigation (OSBI) in response to mass casualty events. The bill defines a "mass casualty event" as an incident resulting in at least three injured individuals, requiring more emergency resources than typically available, and causing a sudden influx of individuals needing emergency services. It authorizes the OSBI to respond to such events, particularly those caused by violent crimes, without needing a request from local law enforcement, allowing for better coordination during emergencies.

Additionally, the bill creates the Mass Casualty Revolving Fund within the State Treasury, which will be a continuous fund not limited by fiscal year constraints. This fund will consist of money received from legislative appropriations, federal grants, and other sources designated for investigating mass casualty events. The OSBI will be able to budget and expend these funds for the purposes outlined in the act, with expenditures made through warrants issued by the State Treasurer. The act is set to take effect on November 1, 2025.