I read on the British Association of Social Workers (BASW) website that the National Society for the Prevention of Cruelty to Children (NSPCC) is setting up an expert panel to hear and learn from people who work with children in the UK.
If you fit the bill, you can sign up for the panel at:
Potential respondents are assured that their identities will be kept confidential.
I think the NSPCC has hit on an excellent idea. I do think, however, that there needs to be a clear commitment that the findings of the survey will be published regularly and that their implications will be publicly discussed. An annual publication would probably be best.