No, I am not. I know nothing about the local county sheriff there, and maybe he's a corrupt asshole. But county sheriffs in general are constitutional positions, and they often have powers to investigate and make arrests that local or state police do not have. They can do things that other law enforcement groups cannot do.

As for whether or not that local sheriff is corrupt or is a patriot, I assume that every other law enforcement body there is corrupt as hell, so the sheriff is probably the only option. If he's corrupt as well, then there are no options there to get justice, and only the military will be able to clean it up.