Seems one solution could be for officers to use loudspeaker to state why they are outside, and give very specific protocols for safely exiting the residence. Po

Seems one solution could be for officers to use loudspeaker to state why they are outside, and give very specific protocols for safely exiting the residence. Possibly offer a communication channel to dispute validity of their arrival. I imagine they have the phone number of the land-line or cells within a certain radius of the residence, along with social media profiles they could examine to 'profile' participants in the situation and assess validity. You can't have a system that solves the problem 100% and is immune to being gamed by criminals, but with data and clear lines for communication it seems you could pretty easily create a reliable 'safety net' for people caught up in fraudulent 911 calls without exposing the responding officers to any risk.