This case relates to a Father's application for an order for the immediate return of his daughter from England and Wales to Israel. It had been decided that a return could not be ordered under The Hague Convention and the hearing was to determine if the return could be ordered by the High Court under its inherent jurisdiction.
The Supreme Court made an urgent decision on the 14 August 2019 and overturned the High Court judgement to return the child, but it reserved the judgement giving reasons which has now been handed down today.
In short, the outcome is that the inherent jurisdiction is available to the High Court in matters of this kind, but on this occasion the exercise of that jurisdiction was flawed and the child did not have to be returned.
Familylawweek.co.uk provides a helpful summary, and there will no doubt be much discussion amongst lawyers as to how useful this will be in practice.