The Butler Report refers in several places to the work of Lord Hutton.
For example, the Butler Inquiry says this in paragraph 568:
It is not our intention in this report to revisit issues already addressed by Lord Hutton.
If such an approach is applied more generally throughout the Butler Inquiry, the observed deficiencies of the Hutton Inquiry may have implications, potentially serious implications, for the credibility of the Butler Report.
A closer examination of such matters, when time allows, may allow a better documented assessment of the truth or otherwise of the mildly cynical comment, "When you are served by a Butler, you get exactly what you asked for.".