>She wasn't "treated like a criminal" because she tested positive to a preliminary test. She was treated like a criminal because she insisted on breastfeeding her baby despite several positive test results.
She was treated like a criminal before giving birth, though.
>you somehow have been exposed to meth
How exactly do you get exposed to meth?
>than the desire of a new mother to validate their motherhood by breastfeeding
You're reading an awful lot into her desire to breastfeed her child.