I absolutely understand what you're saying, and this is not an attempt to justify the cases you've described. However... Attacks on EMS workers are also a real

I absolutely understand what you're saying, and this is not an attempt to justify the cases you've described. However... Attacks on EMS workers are also a real problem, and I am glad for the presence of law enforcement on the scene of my EMS calls on a very regular basis. It is also common practice for EMS to wait for police to arrive and 'secure' a scene if the nature of the call sounds like there is a chance the encounter could turn violent (or that we could be walking into an already violent encounter).