'Relationship between family and doctors may have failed'
31 August 2014 Last updated at 09:27 BST
Ashya King, the five-year-old boy with a brain tumour whose parents removed him from a hospital in Southampton, has been found in Spain.
Brett and Naghemeh King have been detained. Mr King said they'd taken Ashya away because he couldn't get the treatment he needed on the NHS.
Matthew Crocker, a consultant neurosurgeon at St George's Healthcare in London, says the relationship between the doctors and the family appears to have failed.