LAS VEGAS — A former animal control supervisor has pleaded guilty to felony animal cruelty after she was accused of illegally killing dogs at the Boulder City shelter.

Mary Jo Frazier’s plea on Tuesday follows a small town scandal that also saw a police chief ousted after deciding to close the case despite finding that more than 90 animals had been improperly euthanized in one year.

Frazier retired at the time and moved to Oregon.

Prosecutor Amy Ferreira says Frazier could get probation or up to one to four years in Nevada state prison at sentencing Jan. 31.

The plea avoided trial, and a second cruelty charge was dropped.

Former Boulder City Police Chief Bill Conger resigned in January and pleaded guilty in April to failure to perform a duty, a misdemeanor. He agreed to pay a $1,000 fine.