The essay explores the relationship between positivist epistemology, l
egal analysis, and the prosecution of pregnant women. Drawing on femin
ist analysis of science, the paper argues that legal thought and pract
ice have been seriously distorted by positivist perspectives, especial
ly in terms of narrow notions of what constitutes cause and effect. Th
e critique of positivism provides a basis for reconceiving legal respo
nses to drug use by pregnant women that are consistent with expanded n
otions of legal causation. Such an expansion provides the intellectual
justification for expanding institutional interventions and encouragi
ng a generally fairer and more satisfying politics.