De Visu and De Auditu Witnesses in a Cause

A witness de visu speaks from direct perception or personal participation: living with the Servant of God, observing an act, treating an illness, or seeing circumstances relevant to martyrdom. A witness de auditu a videntibus did not see the fact but heard it from someone who did; Sanctorum Mater allows this testimony to be added when necessary. More remote testimony, traditionally described as de auditu ab audientibus, reports what was heard from another hearer, and the instruction says that taking such testimony is not foreseen. The labels disclose the route by which a statement reached the tribunal and govern what the inquiry may receive.^[1]

The delegate therefore asks not only what happened but when, where, how often, in whose presence, and from what source the witness knows it. A sincere eyewitness can be mistaken, while a carefully preserved contemporary report can corroborate facts powerfully. Still, source distance affects what an assertion can prove. For recent causes, the norms ordinarily require eyewitness testimony regarding heroic virtues or martyrdom; testimony heard from an eyewitness may supplement the record where necessary, but an accumulating chain of reports from other hearers is not the testimony contemplated by the instruction.^[1]

The postulator proposes witnesses, but the promoter of justice and delegate also identify witnesses ex officio, especially those who may know difficulties or contrary facts. Family members, collaborators, critics, experts, and persons connected with an alleged miracle can all contribute, provided their relationships and possible interests are disclosed. Historical causes may necessarily depend more heavily on documents and scholarly experts. A reputation for holiness is itself a relevant fact, but repeating public devotion does not convert opinion into direct knowledge of heroic virtue.^[2]

Witnesses testify separately, under oath, and without reading a prepared collective narrative as their deposition. They should distinguish memory from inference and name the person from whom reported information came whenever possible. The tribunal can confront contradictions through additional questions or other witnesses without staging an adversarial spectacle. A person who possesses secret or privileged information is handled under the applicable law; no one is invited to violate the sacramental seal. Evidentiary rigor and respect for conscience are complementary duties.^[1]

The diocesan officials record the source and circumstances but do not assign a final Roman verdict to each sentence. Testimony is studied alongside writings, archival records, medical evidence, chronology, and the witness's consistency and opportunity to know. Several dependent reports may trace back to one uncertain source and therefore are not several independent confirmations. Conversely, an early document created close to events may illuminate or test a later eyewitness memory. The point of de visu and de auditu is transparent provenance within that total assessment.^[3]

These categories must not be used pastorally as labels of personal worth. A witness reporting family tradition can serve the cause honestly even when the statement has limited probative force, and an eyewitness is not beyond examination. Nor does canonization certify every anecdote later associated with a saint. It is the Church's judgment, reached through distinct theological and juridical stages, about sanctity and public veneration. Careful source language prevents devotional retelling from being mistaken for what a sworn witness actually established.^[4]