(c) This complaint is obligatory in virtue of charity, when without serious inconvenience one can thereby save a neighbor from a grave evil, such as unjust sentence of death or infamy: “Deliver them that are led to death” (Prov., xxiv. 11); “Rescue the poor, and deliver the needy out of the hand of the sinner” (Psalm lxxxi. 4).
1968. Is a Malefactor Bound to Accuse Himself?—(a) As a rule, he is not bound to confess guilt, either explicitly or implicitly, for this is too much opposed to natural inclination, and hence is not demanded by law (see 552). This seems to be true even though an accused has unjustly declared himself innocent, and has not been questioned further or has been acquitted; for legal justice obliges the accused to give a true answer only when he is being questioned (see 1978). In Canon Law those who would sustain damage from their own testimony are not bound to take the witness stand, and hence persons who reasonably fear that their evidence will subject themselves or their relatives to infamy, vexation or other disadvantage cannot be forced to testify (Canon 1755, n. 2). In civil law one may not be convicted on one’s own testimony alone, unless the confession was voluntary, that is, made neither under fear, nor with the hope of favor, nor as the result of any species of coercion (Robinson, _Elementary Law_, Sec.608).
(b) In exceptional cases, one would be bound to accuse oneself, namely, if there were a grave and urgent necessity of the community which outweighed the loss that would follow from self-accusation (see 1576, 1577). Self-accusation is also a duty when one is the gravely culpable cause of the punishment of an innocent person, if there is no other lawful way of freeing him, and the self-accusation will not bring on one a much more serious evil than that which the innocent person suffers.
1969. Ethical Conditions for Lawful Accusation or Denunciation.—(a) There must be no injury to the common welfare. Hence, if the order and peace of society would be disturbed by the accusation of a crime which was private and from which no further damage could be anticipated, it would be better to leave this occult crime unpunished rather than bring on greater evils to the public.
(b) There must be no injury to private welfare. Hence, if the accuser does not believe that his accusation is just, or if he knows that there is no suitable evidence for his charges, or if he is excluded by law from making an accusation (e.g., when his knowledge has been derived from the confessional or in other confidential ways), it would be unjust to accuse; if the offender offers to make full satisfaction for a private wrong and has already amended, or was not accustomed to commit such wrongs, or if the loss he will suffer from the accusation will be far in excess of the wrong he has done, it would be uncharitable to make formal accusation (see 1200, 1201).
1970. Persons Who May Not Act as Accusers.—Generally speaking, the following persons are naturally incapable of acting as accusers: (a) those who are guilty of greater misdeeds or who are infamous, since it is unbecoming for them to accuse; (b) those who are enemies of the other party, since they are swayed by spite or revengefulness; (c) those who are near relatives of the other party, since it is unnatural for them to attack their own flesh and blood.
1971. In Whose Favor May One Denounce a Private Wrong?—(a) One may denounce it in one’s own favor, for one is not obliged to sacrifice one’s right to redress, and hence accusation is permissible (see 1199). Those who are considered as one person with the injured party may accuse for him, such as parents, husband, wife, children.
(b) One may denounce a private wrong in favor of an innocent third party, as when an innocent person is being harassed by oppression, even though one can defend him only with notable inconvenience to oneself (see 1967).
(c) One may denounce a private wrong in favor of the guilty party himself, as when he is guilty of offenses that are harmful only to himself (e.g., drunkenness, impurities), if he has a bad reputation already or his delinquencies are manifest.
1972. Accusation and Fraternal Correction.—Whether obligatory or permissible accusation should be preceded by a fraternal correction is controverted among moralists. But perhaps the two opposite views may be reconciled as follows: