I think a measure like the one you are suggesting would be very useful, as long as it does not leave a doubt as to the continuity of the program in five or six years. You must understand that the continuity and certainty of a similar program are essential to its integrity. A well-written clause could be useful.
A special committee would likely be useful. I don't really know how a committee like that works. So I don't have a very clear opinion on this. However, I would like to point out that one of the best known programs, the Federal Marshal Program in the United States, has been evaluated. Just because the program meets the needs in terms of the protection of information does not mean that it is impossible to carry out a proper evaluation.