A U.S. citizen says her rights were violated after she was detained by immigration authorities in San Bernardino

Guadalupe Plascencia said she was alarmed when a San Bernardino County sheriff’s deputy asked her to sign papers related to her immigration status.

The 59-year-old hairdresser from San Bernardino had spent the night of March 29 in jail because of a decade-old bench warrant related to her alleged failure to appear as a witness in a court case. During her night in jail, Plascencia said a deputy asked her to sign documents acknowledging that officials with U.S. Immigration and Customs Enforcement had inquired about her.

“Why?” Plascencia asked. “I’m an American citizen.”

Confused and scared, Plascencia did as she was asked, assuring herself that the entire ordeal was a mistake that would soon be cleared up.