Which would have properly identified her as the person that the court records showed had a warrant for her arrest.
THE SHERIFF'S OFFICE DID NOT MISIDENTIFY THIS WOMAN.
This kind of problem where someone is brought in under a warrant for the wrong person is usually a case of misidentifying someone. That isn't what happened in this case. The warrant was recorded for the wrong person. An attempts to verify that they had the right person would simply confirm that they had the person for whom their records showed had a warrant for their arrest. The courthouse screwed up. The Sheriff's department was operating properly based on the information they had been given.
Since they likely hear one criminal after another claim they have the wrong person, it isn't too surprising that it took a little while for them to figure this one out, when confirming her identity didn't show that they had the wrong person.
They did have the wrong woman.
Period.
The sheriff has legal liability period.
The fact someone in the court system screwed up in any way shape or form is irrelevent. False imprisonment is a strict scrutiny test which the sheriff can not win and any excuses he and his staff make now only dig a deeper hole.
They need to start making the check out. (and stop digging a deeper hole)