I spent my first 10 years in a place where all of the publicly safety agencies were in constant battle with each other. I have tried to promote cross training and cooperation in my current stomping grounds, and it seems to work even though there wasn't bad blood here. We will adjust our personnel's schedule as much as possible so that they can attend medical first responder or firefighter training. We also allow/encourage those that volunteer with Fire Rescue to respond to calls in the SO vehicle when off duty. The citizen's paid for the cars, and I doubt they will quibble about blue lights showing up to help along with red. The Sheriff and I went through the medical responder training as well, and we deputized the EMA director (oversees Fire Rescue). We train with the Rescue Task Force concept for a unified response to active shooter incidents.