Though with the previously published data available, their analysis suggested that a ban of private gun possession or a partial reduction in gun availability might lower the rate of gun-related homicides, this model can't tell us definitively how gun deaths might be prevented yet. It's just a preliminary model to how we might approach the debate scientifically, one that can be updated as more statistics become available. "There's a lack of data in the field," Komarova says, because of the effective ban on federal funding for this type of research. "One of the purposes of the study was to encourage people to go and study these things." The researchers liken it to trying to diagnose a disease without having access to things like the patient's temperature or blood pressure.