Srbijanski tužilac za ratne zločine Vladimir Vukčević pohvalio je Williamsonov doprinos u rješavanju predmeta ratnih zločina po osnovu sukoba na Balkanu iz 1990-tih godina.
Serbian War Crimes Prosecutor Vladimir Vukcevic praised Williamson for his contribution to the solving of war crimes cases stemming from the Balkan conflicts in the 1990s.