The literature in this area is vast, ranging from the statement
that the Shroud is painted a self-portrait of Leonardo,
that it is the work of a medieval forger who used techniques not known to us,
that which makes the Shroud ‘ scientific proof of the resurrection ‘, or
… a radiation characteristic … as if the resurrection itself was a natural event….
(also original link in Italian)
Here is one example:
[The Question] The debate around the Shroud at that point has arrived and what is your opinion on the debate in recent decades?
[Barberis’ Answer] In recent years there has been a lively debate considerably around the Shroud, perhaps as never before in the past, facilitated, without a doubt, an exceptional sounding board provided by modern means of communication. This debate was triggered mainly (but not only) by the now famous radiocarbon dating of the Shroud cloth made in 1988, the result of which (medieval dating of the Shroud) sparked a confrontation not only between scientists and scholars, but also in public opinion. The scientific debate was to take place, as is right and logical, exclusively within those research groups who have decided to grapple with the complex and thorny issue of evaluating the date of the Shroud cloth, with the opportunity to make known experimental results and related theoretical considerations at meetings or scientific congresses. In fact it did not happen, because the debate became incorporated arguments often anything but scientific. Also the media have certainly facilitated the work, as they are often spoken extensively on news of minor and have been silent instead those series, looking almost exclusively of the sensational news. In fact, below that there is another question of far greater thickness and oldest: the controversy between the two opposites ‘fundamentalisms Shroud’, the advocate of absolute certainty the identity of the Shroud and burial cloth of Jesus, and what he believes that the two objects lacking any correlation. It is obvious that everyone is free to propose and defend their thesis, but it is also equally natural that such a defense must respect the logical criteria of modern science. There has however a number of statements and debates in which often start from absolutely arbitrary assumptions and preconceived, using arguments that go against the most elementary rules of logic and therefore leads to conclusions absolutely unprovable. The literature in this area is vast, ranging from the statement that the Shroud is painted a self-portrait of Leonardo, that it is the work of a medieval forger who used techniques not known to us, that which makes the Shroud ‘ scientific proof of the resurrection ‘, or the result of a radiation characteristic of the resurrection, as if the resurrection itself was a natural event, repeatable laboratory and therefore reviewable by scientific methods. And the list could go on much longer. Force the hand of the scientific evidence, or neglect them completely and start from assumptions absolutely baseless, equivalent to damage and discredit the meaning and message of the Shroud that make a unique object in the world. The scholar serious and correct detests the Crusades or against the authenticity of the Shroud image, made just to convince more people of their convictions, without wearing a shred of evidence, or by arguing that struggle with most basic rationality. Starting from the assumption that ‘the shroud is the burial cloth of Christ’ and try to prove it at all costs without bothering to give reasons and objective series or to assume that ‘the Shroud is the work of a medieval forger’ and do the same tantamount not only to perform a scientifically incorrect, but also to tease all those who, eager to learn more, to take good similar conclusions. The only serious and honest behavior is that of someone who, wanting only to know the truth, stands humbly to his research, without claiming to want to demonstrate any preconceived thesis, and, indeed, rejecting everything that can not be seriously and scientifically proven . On this subject, it is expressed very clearly Saint John Paul II in his speech in front of the Shroud May 24, 1998: "The Church urges [scientists] to face the Shroud be studied without pre-established positions that take for granted that these results do not they are; invites them to act with interior freedom and attentive respect for both scientific methodology and the sensibilities of believers. " On that occasion the Pope, very effectively, called the Shroud ‘a challenge to our intelligence’. The discussion on the Shroud often degenerates because the Shroud is not a neutral object, it involves both the reflection of historical-scientific, is that kind of religious creed. If it were a sheet in which you think has been wrapped any other historical figure, all these discussions are not met. Therefore only keeping separate the scientific approach and the religious (both basic and complementary) you can think of to deal with a serious study on the Shroud and honest.
Another example is the question and answer that just preceded the one above:
[The Question] Professor Luigi Campanella has developed methods that could perhaps give a measure of the pollution of the Shroud. Because these methods are not used because they do not realize other analyzes on the Shroud? -because the Shroud remains inaccessible to scientists?
[Barberis’ Answer] . . . It is not true that the Shroud is inaccessible to scientists. Personally I am absolutely conducive to the holding of new direct studies on the Shroud provided, however, that it is non-destructive testing: we can not treat the Shroud as a lab rat, especially considering that it is a unique object. Current technology allows you to make meaningful analysis of fibers with a thickness of a few micrometers which therefore require withdrawals nondestructive. A new campaign of direct studies on the cloth should aim to collect more data to form a complete map of the physical, chemical and biological properties of the entire Shroud, to be made available to scholars so that they can work and confront on accurate, reliable. To do this it would be necessary to organize a program of analysis using modern and sophisticated equipment: a real laboratory for the Shroud. The costs of such a complex operation would certainly very consistent. Only after an analysis and a detailed study of the Shroud could possibly make sense to program a new dating of the cloth.