Staff members of the Stanislaus County Department of Social Services at two locations accused Rita Polo, 48, of Ceres, of making terrorist threats last week which led to her arrest.

The county staff on Hackett Road called Ceres Police Department at 8:50 a.m. to report that Polo threatened to kill them. Police arrived and located Polo, who was then hiding under a desk in the lobby. She was detained and arrested.

An investigation revealed that previously Polo made threats at the Social Services building in Turlock, allegedly saying she was going to shoot all the employees there. Polo admitted making those threats and was arrested and charged with making terrorist threats.

Ceres Police Department spokesman Sgt. James Yandell said that he didn't know what set off Polo.