Hi Katie. I have first hand experience with crack, recovery, crack addicts, and loved ones in and out of jail due to the addiction.
Her actions sure don't sound like the actions of someone who is in recovery. I think the good thing about jail is that it gives them to clean up a little so their brains are clear and they can contemplate what a mess they've made of their lives.
But it's up to them to stay clean when they get out and that's not easy for addicts.
Good luck to you. Focus on staying detached. You can't make her better, no matter how much you want it for her. She must go through whatever she puts herself through until she finds her own way. It's hard to watch. But necessary for an addicts recovery. Don't let it destroy your life though. Youre daughter will appreciate that you are still around and stood firm with your boundaries once she gets out of the fog of addiction.