The staggering new evidence contained in this book offers the most persuasive argument yet that British and US intelligence acted jointly to assassinate Diana, Princess of Wales. The product of a two-year investigation, Princess Diana: The Hidden Evidence claims foreknowledge of an M16 plot to "Eliminate one of the most prominent figures on the world stage", but that is only the beginning. There follow the testimonies of many high profile sources - crash experts, security and intelligence experts, medical experts, constitutional and historical experts - all of which creates a coherent and compelling case - and one to which we should demand an answer.