Jonathan Caplan QC, defending News Group Newspapers said training had been arranged for in-house lawyers in the wake of the mistake.

BBC: The Sun fined for Andrew Partington's trial reports

But lawyers for the group asked Judge Mackie QC to delay their court application in the light of Health Secretary Jeremy Hunt's decision last month to order a full review of the JCPCT recommendations by the Independent Review Panel (IRP).

BBC: Legal bid to save Leeds child heart surgery will go ahead

This time, Carwyn Jones has decided to look beyond his Assembly group and plumped for Theodore Huckle QC, from the Civitas chambers in Cardiff.

BBC: The new CG and some raised eyebrows

The group's counsel, David Wilby QC, has told Mr Justice Akenhead that the disabilities were caused early on in their foetal development when their mothers ingested or inhaled an "atmospheric soup of toxic materials" from the redevelopment.

BBC: Toxic defect link a 'delusion'