Well, at least she was already at the jail

It's generally a bad idea to show up for work when you're half in the bag, but when you've got a job like this, it's a really bad idea:

A contract worker for a Nevada sheriff's department is accused of driving drunk to a jail to test a suspect's blood alcohol content.

Fifty-three-year-old Kathleen Cherry told a Carson City sheriff's deputy who smelled alcohol on her breath that she had one margarita before driving Friday night.

She's accused of failing field sobriety tests and registering a blood alcohol content over the state's legal limit of 0.08 percent.

Which begs the question: if she was driving there to test a suspect, and she was drunk, who tested her? Because in a situation like that, I'm pretty sure they don't let you test yourself.