Critically assess the extent to which the courts' current interpretation of the threshold test in section 31 of the Children Act 1989 achieves the right balance between parents' and children's rights under the European Convention on Human Rights? To what extent does it sufficiently prioritise the wellbeing of the child? Critically assess, with reference to case law, academic literature (critics' names, quotes from their works, and what these mean), and statute. (5pgs)