Crimes Against the Papacy
With regard to the penalties enacted against offenses which may be committed in the election of the Supreme Pontiff, the only law to be considered is the Constitution of Pope Pius X "Vacantis Sede Apostolica", December 25, 1904. (Canon 2330) Note Pope Pius XII made some changes in his Papal Election Law.Persons who stubbornly refuse to obey the legitimate precepts or prohibitions of the Roman Pontiff or their proper Ordinary shall be punished with appropriate penalties, not excluding censures, in proportion to the gravity of their guilt. (Canon 2331, paragraph 1)Those who conspire against the authority of the Roman Pontiff or his legates or their own proper Ordinary, or against their legitimate commands, and also those who provoke subjects to disobedience towards them, shall be restrained by censures and other penalties; if they are clerics, they shall be deprived of dignities, benefices and other offices; if they are religious, they shall be deprived of active and passive vote and of office. (Canon 2331, paragraph 2)Each and every one of whatsoever state, degree or condition-whether king, bishop or Cardinal-who appeals from the laws, decrees, or mandates of the reigning Roman Pontiff to an Ecumenical Council, is suspected of heresy, and incurs ipso facto excommunication reserved in a special manner to the Apostolic See. Universities, colleges, chapters, or other legal bodies, by whatsoever name they may be known, incur an interdict reserved in a special manner to the Apostolic See. (Canon 2332) This is a restatement of the Bull Exsecrabilis. Persons who have recourse to the laical power for the purpose of impeding any letters or who directly or indirectly prevent their promulgation or execution, or persons who injure or terrify because of these letters or acts those to whom these documents are directed or others, incur ipso facto excommunication reserved in a special manner to the Holy See. (Canon 2333)Persons who lay violent hands on the person of the Roman Pontiff:1. Automatically incur excommunication reserved in a most special manner to the Apostolic See, and ipso fact becomes excommunicati vitandi;2. Are ipso jure branded with infamy;3. If they are clerics, they must be degraded. (Canon 2343, paragraph 1)Any person who in public periodicals, speeches, or pamphlets, has injured either directly or indirectly the Roman Pontiff, the Legates of the Roman Pontiff, the Sacred Congregations at Rome, the Tribunals of the Apostolic See and their major officials, or his proper Ordinary, or who has excited animosity or hatred against their acts, decrees, decisions or sentences, shall-not only at the instance of the party, but also ex officio-be compelled by the Ordinary even with censures to make satisfaction, and shall be punished to the gravity of his guilt and the necessity of repairing the scandal. (Canon 2344) Persons who usurp or retain, personally or through others, goods and rights pertaining to the Roman Church, automatically incur excommunication reserved in a special manner to the Apostolic See. (Canon 2345)Saint Cyprian (De Unitate Ecclesiae): He that keeps not the unity of the Church, does he think that to keep the faith? He that abandons the See of Peter whereon the church is founded, can he flatter himself that he is still in the Church? The crime of schism is considered on a separate page. From Moral Theology
by McHugh and Callan, #1369
Rejection of a decision or command of the Pope may happen in three ways:A. The reason for rejecting the decision may be the thing commanded, and not the one who gave the command, as when a person refuses to keep a fast or make a restitution commanded by the Pope, because he considers it too difficult. In this case the person is guilty of disobedience, but not of schism, even though he persists in his refusal; for he rejects a commandment of the Church, not the head of the Church.B. The reason for rejecting he command may be the one who gave the command, considered as a private individual. As the Pope in his personal relations is not above human weakness, he may be swayed by hatred, prejudice or impulsiveness in issuing commands to or forming judgments about individual subjects. Hence, if we support that it is reasonably certain that a Pope in unfavorable to an individual, and that the latter according is unwilling to have a case in which is concerned fall under the immediate decision of that Pope, neither schism nor any other sin is committed; for it is natural that the person should wish to protect his own interests against unfairness.C. The reason for rejecting the Pope's judgment may be the one who gave the command considered in his official capacity as Pope. In this case the person is guilty of schism, since he disobeys, not because of the thing ordered is difficult or because he fears that the individual will be unjust, but because he does not wish to recognize the authority of Pope in him who issued the judgment. 
Michael Fighting
