I have volunteered with my local Emergency First Responders for over 10 years. They can be a great source of training (they sponsored my EMT training and certification). In a local SHTF event I am both know and trusted by the local First Responders. They are a great resource for situational awareness just prior to and during SHTF.
“If you know your enemies and know yourself, you will not be imperiled in a hundred battles… if you do not know your enemies nor yourself, you will be imperiled in every single battle.” Sun Tsu, The Art Of War.