Do you have any links with details about this or elaborate a bit on it? I just read a half dozen different accounts about the Granby, Colo. incident and none of them mention any civillians getting involved during the bulldozer rampage, just deputies, state troopers, park rangers, and SWAT from the adjacent Jefferson County.

There was one mention of The Posse Comitatus Act in one of the articles about this incident that I read, but that's different from what we're talking about here.