Prosecutors have accused a state park ranger of threatening a motorcyclist at gunpoint.
Bernard Mark Garvey of Argyle faces one misdemeanor count of endangering safety by use of a dangerous weapon.
Investigators said in a criminal complaint filed Monday a cyclist named Michael Parrot entered Yellowstone Lake State Park in June without a sticker for his motorcycle and got into a scuffle with Garvey over the motorcycle's keys.
Garvey handcuffed him but Parrott managed move his hands from behind his body to the front. Parrott told investigators Garvey pressed the barrel of his gun against Parrot's helmet and said "give me a reason."
Online court records didn't list an attorney for Garvey. DNR spokesman Bill Cosh says Garvey was relieved of his law enforcement duties in August.
(Copyright 2012 by The Associated Press. All Rights Reserved.)