Upvote:0
When and for what reasons does the Pope have the right to legitimately excommunicate members of the Church?
First of all the pope can exorcise his absolute authority within the Catholic Church in an unhindered manner according to the Catechism of the Catholic Church:
882 The Pope, Bishop of Rome and Peter's successor, "is the perpetual and visible source and foundation of the unity both of the bishops and of the whole company of the faithful." "For the Roman Pontiff, by reason of his office as Vicar of Christ, and as pastor of the entire Church has full, supreme, and universal power over the whole Church, a power which he can always exercise unhindered."
The pope has to follow the the rules for excommunicating any Catholic faithful from communion of the Catholic Church as any other prelate of the Church!
In the Latin Church, Canon Law describes two forms of excommunication. The first is sententiae ferendae. This is where the person excommunicated is subject to a canonical process or trial, and if found guilty of misdemeanours meriting excommunication is duly sentenced. Once the sentence is published, that person is barred from active participation as a member of the Catholic Church. But this is a rare event.
The more common excommunication is that termed latae sentential, or what sometimes called often "automatic excommunication", where someone, in committing a certain act, incurs the penalty without any canonical process having to take place.[20] If the law or precept expressly establishes it, however, a penalty is latae sententiae, so that it is incurred ipso facto when the delict is committed.(Ca. 1314)
Sententiae ferendae
A person may be ferendae sententiae (i.e., upon judicial review) excommunicated if he
tries to celebrate the Mass without being a priest (incurs, for Latin Catholics, also a latae sententiae interdict for laymen and suspension for clerics, can. 1378 § 2 no. 1 CIC, can. 1443 CCEO),
hears a Confession or tries to absolve without being able to absolve (for Latin Catholics; this does not, of course, include hindrances on the penitent's side for the mere hearing of the Confessions, and hidden hindrances on the penitent's side for absolutions; can. 1378 § 2 no. 1; incurs also a latae sententiae interdict for laymen and suspension for clerics)
breaks the Seal of the Confessional indirectly (?) or as someone not the Confessor, e. g. an interpreter or one who overheard something that was said (for Latin Catholics, can. 1388 § 2 CIC),
who breaks a penal law allowing excommunication that was enacted on local level, which the local authority, however, may only do with great caution and for grave offences (for Latin Catholics, can. 1318 CIC).
omits stubbornly, as an Eastern Catholic priest, the commemoration of the hierarch in the Divine Liturgy and Divine Praises (not mandatorily, can. 1438 CCEO)
commits physical violence against a patriarch or a metropolitan, as an Eastern Catholic (can. 1445 § 1 CCEO),
incites sedition against any hierarch, especially a patriarch or the Pope, as an Eastern Catholic (can. 1447 § 1, not mandatorily),
commits murder, as an Eastern Catholic (can. 1450 § 1 CCEO),
kidnaps, wounds seriously, mutilates or tortures (physically or mentally) a person, as an Eastern Catholic (can. 1451 CCEO, not mandatorily),
falsely accuses someone of a [canonical] offence, as an Eastern Catholic (can. 1454 CCEO, not mandatorily),
tries to use the influence of secular authority to gain admission to Holy Orders or any function in the Church, as an Eastern Catholic (can. 1460, not mandatorily),
administers or receives a Sacrament, excluding Holy Orders, or any function in the Church through simony, as an Eastern Catholic (can. 1461f. CCEO, not mandatorily).
Latae sententiae
The 1983 Code of Canon Law attaches the penalty of (automatic excommunication) to the following actions:
Apostates, heretics, and schismatics (can. 1364)
Desecration of the Eucharist (can. 1367)
A person who physically attacks the pope (can. 1370)
A priest who in confession absolves a partner with whom they have violated the sixth commandment (can. 977, can. 1378)
A bishop who consecrates another bishop without papal mandate (can. 1382)
A priest who violates the seal of the confessional (can. 1388)
A person who procures an abortion (can. 1398)
Accomplices who were needed to commit an action that has an automatic excommunication penalty (can. 1329)
Generally speaking, automatic excommunications are not known to the public. Unless the individual committed the action in a public manner that would cause the local ordinary to issue a statement about the automatic excommunication, the burden is on the offender to confess the sin and seek the removal of the penalty.
Pope’s must follow the very rules that the pope’s have written down in the Code of Canon Law!
Upvote:4
One must be tried and judged guilty to incur a ferendæ sententiæ excommunication.
In that quote you give, where it says "I forbid under the pain of excommunication…," this refers to the conditions of a ferendæ sententiæ excommunication. One "incurs it only when the judge has summoned him before his tribunal, declared him guilty, and punished him according to the terms of the law." (source).
Some Background on Excommunications
For those Catholics in his jurisdiction, a bishop can
or
declare that someone has excommunicated himself by having performed the excommunicable offense itself, in the case of latæ sententiæ excommunications.
For a recent example of latæ sententiæ excommunication that the bishop publicly acknowledged/declared, see the 2010 excommunication of Sister Margaret McBride of Phoenix, Arizona.
See also: "Who can excommunicate?"
Now, a pope has no superior, save God alone. However, a subsequent pope can lift excommunications, as Benedict XVI did in 2009 for the Society of St. Pius X bishops whom John Paul II declared excommunicated in 1988.