A witch by birth, Sarah is immensely rich and imminently bored, having inherited her wealth upon the death of her parents.
She isn't actually sure how that happened, actually, though she suspects fowl play. She tried her hand at detective work - it didn't take; but she did enjoy her interrogations - the sense of being in control of a situation, when everything else was spiraling out of control.
Unfortunately, the job of "professional interrogator" didn't take either. Still, one of her attempted victims suggested a better profession: Dominatrix.
Thankfully, being bored, rich and magical has given her lots of time to practice.