House Bill 214 establishes provisions for the prosecution of individuals in Montana who are subject to federal immigration detention. The bill allows the state to initiate criminal prosecutions against these individuals for violations of state criminal law. It also stipulates that if a prosecution is pending, the state may either surrender the individual to federal authorities upon request or retain them until the state legal proceedings are concluded.

Additionally, the bill introduces a requirement for prosecutors to notify the attorney general if they are considering declining to prosecute an individual who falls under the specified category. This notification is intended to provide the attorney general with the opportunity to initiate prosecution if deemed necessary. The bill is designed to be codified as part of Title 46, chapter 1, part 1 of Montana law.