God's Jury is an interesting, if rather too thinly detailed, history of the Inquisition, combined with an extensive contextualization of Inquisitorial institutions in history, from the Church to England, Germany, the Soviet Union and right down to the present day US government and Guantanamo Bay. I enjoyed it for its historical presentation of the Inquisition, and for the historical contextualization. Murphy reminds us that there were really three Inquisitions, the Medieval, the Spanish and the Roman, each with its own orrery of horrors. We get some good detail about inquisitorial practices and the social and political historical context of their enactment, and learn a great deal about modern scholarly and theological debates about what the Inquisition really was and meant.
That said, I found this to be a flawed book, in a moral sense. Murphy seems determined to not only describe the Inquisition but to normalize it. By lengthy descriptions of other despotic regimes, ancient and modern, which practiced horrible tortures, relished bureaucratic cataloging of heresy, deviance and political subversion, and obsessed over the private lives of each and every citizen, we are given an impression that the Inquisition's greatest significance is merely perhaps that it was among the first in a long line of modern tortuous bureaucratic pursuers of deviance. This seems, on balance, far too kind, far too understanding. It gets worse as we come to understand that, while the Inquisition no longer exists in name, there exists in the modern day Roman Catholic Church a direct institutional descendant of the Office of the Inquisition, and that in some sense the contemporary Catholic Church and its offices are in a line of direct continuity with the Inquisition. Understanding this, the effort to say "but of course everybody does it" begins to sound suspiciously close to an effort to justify, and not merely to understand.
I don't know what I would do if I were a Catholic, as Murphy seems to be, but I don't think I would be able to live in a relationship to an institution that is unable to separate itself more fundamentally from its evil past, or to feel a part of an institution that is so intimately connected to this history. Germany after all went through a flawed but real de-Nazification, but it is not clear to me that the Catholic church has de-Inquisitioned itself in the same sense.
There is a fine line between historically contextualizing evil, and making peace with it, and I'm not comfortable that Murphy stands on what I consider to be the right side of that line.
In the end Murphy presents a history that is plausible in its details, but misguiding. For someone truly interested in Inquisition history, there must surely be better books (and I'll seek one now, and am grateful for Murphy's reintroduction to this is topic.) As an effort to understand what the Inquisition was, and is, in a deeper historical and theoretical sense, God's Jury is not satisfying to me, nor do I think it would be satisfying to anyone who does not, at a basic level, see the Catholic Church as a fundamentally sound and reasonable institution. This book is ultimately about being Catholic when the Catholic Church has this history. It's a solution to a special problem that Catholics must have, but it is not my problem and may not be your problem either. Non-Catholics have the freedom to see the modern Church for what it is, an organization that is theologically contiguous with the men and institutions who burned Jews and other heretics at the stake, who sought out deviance and discovered it, whether it was there or not, and which has never, really, fully renounced its intolerance for divergent beliefs, but instead merely altered, perforce, its methods and strategies. The modern Catholic Church is the still the very same Church of the Inquisition, and this reality is something that God's Jury does us a favor in acknowledging, even highlighting, but frustratingly seems to avoid confronting or challenging. It is well worth reading, but it may leave you disturbed less for the horrors that it presents than by the author's presentation of the modern Catholic Church, an institution that attributes those horrors not to itself, but merely to its misguided followers. This position, ultimately, is unacceptable to me, and I don't really feel confident that the author finds it as unacceptable as I do.