A child was taken away from her grandparents and put into foster care after they locked her in her room overnight.
The seven-year-old, from the West Midlands, was put into the care of the local authority after social workers found out that she had been locked in to prevent her from wandering around.
The couple say that Judge Rosalind Bush, a senior family court judge, ruled that the child should go into care after a private hearing in Wolverhampton.
But they have not had a written explanation or seen a judgment so don’t know why the decision was made.
The child was locked in her bedroom at night on two occasions after she started to wander.
The grandparents said this was for her own safety, but social workers intervened.
The case was heard at a private family court hearing, but no ruling was ever published.