Much has been written about the gun control debate, mass shootings, and gun violence in high crime neighborhoods, but less attention has been paid to efforts to prevent shootings altogether. A gun violence restraining order ("GVRO") is a tailored, individualized way to deter homicide, suicides, and even mass shootings by providing a tool for law enforcement to intervene when harm appears imminent, without having to wait for injury, lethality, or criminal actions.. A GVRO is a "red flag" law which permits removal of firearms from an individual and allows the police to petition a state court to order the temporary removal of firearms from a person who may present a danger to themselves or others.GVROs are a moderate and effective tool for preventing violence. A court decides whether to issue a GVRO based on statements or actions by the gun owner in question. Evidence might include threats of violence 157 Enforcing california's gun ViolEncE rEstraining ordErs