Castle was arrested on the spot and taken to the jail. On the way, she said she became anxious and informed the arresting officer that she was a transgender woman.

In retrospect, she regrets the decision to speak up. Castle had undergone gender reassignment surgery and legally changed her gender in court. All of her official documents reflect her gender as female, and she said she has no problems with her gender identity in daily life.

“I honestly don’t think I should have even said anything, but I was nervous,” she recalled. “I’m not someone who goes to jail. I was scared.”

Castle said the arresting Cobb County police officer was professional and polite, but when the officer informed the jail staff at intake that she was transgender, the mood shifted.

The sheriff’s deputies began laughing at her, and a male deputy patted her down despite her objections. Staff also tried to change her identification wristband to read “male” and temporarily altered her records in the computer system, she says.

The booking report provided to the AJC by the Sheriff’s Office identifies Castle as female.

Over the next 18 hours that she remained in jail, Castle says she feared for her safety as she was repeatedly harassed and demeaned by deputies and inmates.

It was when Castle says she was denied her medication that she made up her mind to hire a lawyer.

“I came so far that I knew that what they were doing was wrong,” said Castle, who is proud of having sought and obtained legal recognition of her gender. “There was no way they could treat me like this.”

Her attorney, Ken Barton of Cooper, Barton & Cooper, said since taking Castle’s case, his firm has been contacted by others alleging similar treatment by the Cobb Sheriff’s Office.

Barton said the county has policies on the book about how to process transgender individuals that were not followed in this case. He said by filing the suit they hope to see justice for Castle and prevent any future incidents of a similar nature.

The county attorney’s office said “per normal procedure,” it would represent Sheriff Neil Warren in a lawsuit filed by an inmate, but it had “not been made aware of or served” with this particular case.

The Sheriff’s Office also said it had not been served, adding that it does not comment on pending litigation.

Court documents show the suit was filed in federal court last week.

The county is representing the sheriff in a separate lawsuit filed by an inmate whose hip was broken at the jail. It also represented him in a lawsuit filed by a Kennesaw State University cheerleader until a judge removed him from that suit.