I believe it's part of the U.K. legislation. It's been used sparingly by the U.K. government. Even when it's used in the areas of national security and foreign affairs, it creates a loud public discussion. I don't want to give advice to the government on how to proceed, but the U.K. example might be something that you could look at. It would be interesting to learn how it's been used, how it's been viewed, and the rules on when the ministerial veto can be applied. I believe the government has stated in some kind of document the conditions that must be present for that to happen.
On May 31st, 2016. See this statement in context.