A man from a community on the Arizona-Utah line that’s long been home to a polygamous group pleaded not guilty Thursday to federal charges of tampering with evidence, weeks after being stopped on a highway with young girls in an enclosed trailer.

A man from a community on the Arizona-Utah line that’s long been home to a polygamous group pleaded not guilty Thursday to federal charges of tampering with evidence, weeks after being stopped on a highway with young girls in an enclosed trailer.