I'm not sure about that. The new operator will ask if the subject if is violent/armed. The three possible answers are yes, no or I don't know. If it can be proved the caller lied to the operator, which then results in injury or death, I don't think the code has to be changed radically to hold the caller criminally liable. I wouldn't charge them for a violent crime, of course. But possibly a felony.
Define "violent," for the purpose here. Standing in the street pounding his chest? Turning a garbage can upside down? Hurting himself? Actually assaulting other people? And what would even that mean? Pounding someone with his fist? Or just shoving someone away if they get too close? And what's "armed?" Pointing a gun? Waving a stick? Holding a bottle? I don't think the call can be reduced to a yes/no template, especially if the caller is subject to criminal liability. The operator is going to have to be trained to ask multiple questions and form a reasonable conclusion.