“A removal is to be considered wrongful where it is in breach of rights of custody of the other parent”
“Notwithstanding the provisions of the preceding Article, the judicial or administrative authority of the requested state is not bound to order the return of the child if the person, institution or other body which opposes its return establishes that – (a) the person, institution or other body having the care of the person of the child was not actually exercising the custody rights at the time of removal or retention, or had consented to or subsequently acquiesced in the removal or retention; …”
“An international Convention, expressed in different languages and intended to apply to a wide range of differing legal systems, cannot be construed differently in different jurisdictions. The Convention must have the same meaning and effect under the laws of all Contracting States”
“We are necessarily concerned with Australian law because we are bidden by article 3 to decide whether the removal of the child was in breach of “rights of custody” attributed by the father either jointly or alone under the law, but it matters not in the least how those rights are described in Australian law. What matters is whether those rights fall within the Convention definition of “rights of custody”