It’s easy if they can find someone within the government structure who are not tied to one particular office, or ministry, or agency. The French has the Center of National Debate. At the moment they do it for construction development cases only.
Their staff is in government positions, but it’s collaboratively chaired by a head of the builder community and a head of the green community. So if you don’t have this kind of third-party, civilian sector, you can build one by engaging multi-stakeholderism within the government itself, and that also works.