Since was primarily concerned with offenses committed in the confessional, this "presented particular problems of investigation, because in most cases the priest could not be interrogated fully without putting the seal of confession in danger." Section 11 of outlines the required confidentiality of the investigation into accusations of the crime of solicitation. The document imposed absolute confidentiality on the trial's proceedings (explicitly excepting "what may happen to be lawfully published when this process is concluded and put into effect", the term "published" meaning "publication of the evidence" in
Canon Law, or the conclusion of the "discovery phase" in a civil trial, before the verdict is rendered), both during its conduct and after any concluding verdict had been put into effect: {{quote|{{verse translation|lang1=la An oath of secrecy was to be taken by all members of the tribunal; violation incurred a penalty of automatic excommunication. The ecclesiastical penalty for violation of secrecy by the accused priest was automatic suspension , although he was free to discuss with his defence counsel (Section 13). Unless violation of secrecy occurred after an explicit procedural warning given in the course of their examination (Section 13; and cf. Section 23 concerning the person denouncing solicitation: "before the person is dismissed, there should be presented to the person, as above, an oath of observing the secret, threatening the person, if there is a need, with an excommunication reserved to the Ordinary or to the Holy See"), no ecclesiastical penalties were to be imposed on the accusers and witnesses. The oath of office to be taken by the members of the tribunal was given as Formula A: {{quote|{{verse translation|lang1=la Interviewed for a television programme in 2006, canon lawyer
Thomas Doyle is quoted as saying that the tight secrecy demanded for the procedure as "an explicit written policy to cover up cases of child sexual abuse by the clergy, to punish those who would call attention to these crimes by churchmen". However, regarding the programme transcript, the BBC "cannot vouch for its accuracy". In the study of the instruction that he revised less than two years later he stated: "According to the 1922 and 1962 documents, accusers and witnesses are bound by the secrecy obligation during and after the process but certainly not prior to the initiation of the process. There is no basis to assume that the Holy See envisioned this process to be a substitute for any secular legal process, criminal or civil. It is also incorrect to assume, as some have unfortunately done, that these two Vatican documents are proof of a conspiracy to hide sexually abusive priests or to prevent the disclosure of sexual crimes committed by clerics to secular authorities." He also remarked: "To fully understand the overriding concern for secrecy one must also understand the traditional canonical concept known as the 'Privilege of the Forum' which has its roots in medieval Canon Law. Basically this is a traditional privilege claimed by the institutional church whereby clerics accused of crimes were tried before ecclesiastical courts and not brought before civil or secular courts. Although this privilege is anachronistic in contemporary society, the attitude or mentality which holds clerics accountable only to the institutional church authorities is still active. This does not mean that the official Church believes that clerics accused of crimes should not to be held accountable. It means that during certain periods in history the Church has believed that it alone should have the right to subject accused clerics to a judicial process."
John L. Allen Jr. has said the secrecy was aimed rather at the protection of all involved, the accused, the victim/denouncer and the witnesses, before the verdict was passed, and for free finding of facts. ==Involvement of the Holy See==