This will not be comfortable for your daughter. I am sorry she has to walk this part... but detox is never easy. At jail, they should be aware that she is detoxing (and from what) so that they can transfer her to a medical facility for observation.
But I do think you already "get it"... that is hers to deal with. Someone told me once, if my daughter can use like an adult, she has to face the consequences like an adult.
Prayers going up. (((hugs)))
Also - my sponsor told me that while in jail my son might meet someone he needed to meet, or hear something he needed to hear. Or perhaps someone needed to meet or hear HIM. Let HP work this out...