They arrested an addict whose drug use may have led to a miscarriage, or who may have just had a miscarriage completely unrelated to the drug use, or a mixture of multiple issues.
There is no difference between this and obesity, alcohol, smoking, or poor diet. Obesity has a voluntary aspect to it, and increases your chances of miscarriage. Eating non-nutritious foods, micro plastics, not taking prenatal vitamins can all contribute to miscarriage. Getting into a car accident while voluntarily driving while pregnant, staying with a violent husband who beats you while pregnant... I mean where do you draw the line at making the pregnant woman 100% responsible for anything that happens while she is pregnant?
They dropped these in my mother in law's suburban neighborhood. In her back yard. With no warning. My dog found and ate one, so it had me googling what the hell my dog had just eaten and wondering if she was going to die. Luckily we didn't have any toddlers playing in the back yard.