Dupnik, 79, who has been Pima County Sheriff since 1980, has filed a resignation letter.
Volunteers help agencies with essential functions, officials say.
South Tucson said responsibility for improper tax is shared, Pima County disagrees.
Returns in Pima, Cochise counties higher than state average.
Chester Crandell had gone horse riding Monday morning in Heber.
The girl and her 7-year-old brother were crossing Orange Grove Road.
A couple was found dead in a Green Valley home Saturday evening.
Incidents from the Tucson area and Southern Arizona.
Armed suspect robbed southwest-side store then fled on an ATV.
Geneva McClean, 38, died after crashing ATV into mailbox in Picture Rocks.
Why do we Tucson reporters love to cover Pima County Supervisor Ally Miller so much?
Pima County Sheriff Clarence Dupnik has tapped the head of his Investigations Bureau to be his second in command, starting next week.
A Phoenix employment attorney is advising Arizona employers that they can still hire as usual, even though E-Verify is closed to business.
Five sets of skeletal remains found concealed in the desert west of Tucson appear to be homicide victims, authorities said Tuesday.
Governor Jan Brewer has appointed Toni Hellon, to serve as Clerk of the Superior Court of Pima County.
Republicans in Cochise County have picked a retired commander to take Sheriff Larry Dever’s position on the November ballot.