But they're not all cops.
Leading a special training session is Arbie Goings, representing the Rural Domestic Preparedness Consortium.
Goings is teaching the hard lessons of a mass fatality disaster.
"By definition, a mass fatality is any event that results in more deaths than the local community can handle," Goings said. "There's not really a certain number it's just when it overwhelms the local resources and they have to reach outside the local area."
These are EMTs, Military, Red Cross, coroners, among others.
And they represent all the small rural areas in northwest Missouri.
"Just by virtue of the fact that we have such a good turnout today shows me that you have a lot of folks that care, that are interested, that want to serve their community the best way they can," Goings said.
Goings discusses the takeaway lessons from infamous fatal disasters, like Hurricane Katrina along the Gulf Coast in 2005, or the September 11 attacks in New York in 2001.
"The ones from the large cities are really just as applicable here as they are there because I've learned that regardless of where an incident happens, the resulting needs of the community are identically the same," he said.
It's tough stuff to learn in a classroom full of your peers and colleagues.
But it's all in the name of preparedness in case the unthinkable happens in your backyard.