Roy Pacheco, a detective with the Las Vegas Police Department, plans to run for San Miguel County sheriff.
He announced that he will participate in the June 1 Democratic primary; candidates have to file in early March.
Sheriff Benjie Vigil, who is eligible to run for a second four-year term, is widely expected to enter the race as well. Pacheco is the first to an-nounce his candidacy.
Pach-eco, 30, has been with the Police Department for 13 years, joining the force shortly after his high school graduation.