So far, the actual laws have not been written - what Badman wrote was a set of recommendations as a result of the consultation. It's now up to the government whether they put all of his recommendations in place by changing the law.
There's a consultation document for this stage too - Link here - this gives you the opportunity to respond to questions like: "Question 10 Do you agree that the local authority should have the power to interview the child, alone if this is judged appropriate, or if not in the presence of a trusted person who is not the parent/carer?"
So, if you think they need to add in a right for parents to have a tape of the discussion, then that's the place to put it.
Unfortunately, I suspect they'll say that if a child was being abused, then they would need to know that they could speak to the inspector in confidence, to protect them...
So I don't know how much chance there is of success. Which is a bummer!
DS1 has his Interhigh first 'have a look' session soon!
IIRC the ink on the contracts to build T5 at Heathrow was dry before the 'consultation' had even started. This will get shuffled through PDQ, I reckon.
The information from the child/inspector interview could be used against a HE parent in court to force a child back to school. It's scary to think that a child could be led into saying something that will later be used against them. And, with an anti-HE 'school is best' type of inspector, it could easily happen.