After nearly a year on the job, Dale D.
Lent, resigned Monday as the Hualapai tribe's police chief.
Deputy police Chief Francis Bradley is now acting chief and will continue until a six-month probation period.
After completion of his probation period, Bradley will becomes police chief and a deputy chief will be hired.
The Hualapai Nation began its new police department in August and has seven sworn police officers in addition to Bradley.
The department is currently looking to hire another police officer and a criminal investigator, Bradley said.
Bradley would not comment on the reason for Lent's resignation.
Lent, who lives in Kingman, could not be reached for comment.
Lent, had more than 27 years in law enforcement, retired from the Mohave County Sheriff's Office as a lieutenant in 1996.
He was hired as Hualapai tribal police chief in July 2002.
Lent also worked with the United Nations International Police Task Force in Kosovo and Sarajevo where he served as its commander.
Lent, 58, also served eight years in the U.S.
Hualapai tribal officers patrol Peach Springs as well as the horseshoe-shape Hualapai Reservation located about 50 miles northeast of Kingman.
Bureau of Indian Affairs officers used to patrol Peach Springs and the Hualapai Reservation.
BIA officers now maintain areas near the Grand Canyon National Park and the Havasupai Reservation.
BIA also maintain the 40-person correctional facility and the telecommunications center located in Peach Springs.
Peach Springs is a town of about 3,500 people on the Hualapai Reservation and sits at about 4,500 feet elevation.