Roger Bland's paper in the ABA Art & Cultural Heritage Law newsletter notes that eminent archaeologist Lord Renfrew of Kaimsthorn currently chairs the Treasure Act's valuation committee.
Lord Renfrew's engagement with the Treasure Act reflects the fact that archaeologists in the UK have largely made peace with metal detectorists.
Yet, vehement critics of the Treasure Act and Portable Antiquities Scheme remain within the archaeological community, though mostly in the United States and Poland, apparently. Perhaps they should mind their own business.