16/05/2026
CONGRESSIONAL IMMUNITY FROM ARREST
BY JUDGE M@RLO C@MP@NILLA
The US Constitution provides that Members of Congress are to be free from arrest when attending or traveling to and from Congress, except in cases of treason, felony, or breaches of the peace. The phrase βtreason, felony, and breach of the peaceβ encompasses all criminal offenses. (Williamson v. United States, 207 U.S. 425) Thus, Members are only privileged from arrests arising from civil suits, which were common in America at the time the Constitution was ratified. (Long v. Ansell, 293 U.S. 76) However, in practice, since the abolition of imprisonment for debt, this particular clause has lost most of its importance. (Edward S. Corwin, The Constitution and What It Means Today) Thus, there is technically no parliamentary immunity in the United States.
The 1916 Jones Law and the 1935 Philippine Constitution had adopted the parliamentary immunity in all cases except βtreason, felony, and breach of the peaceβ. Applying the Williamson case, the immunity should be confined to civil arrest, which the court could not issue under the rule in the Jones Law and the 1935 Constitution that no person shall be imprisoned for debt.
Although the legislature had no immunity from criminal arrest under the Jones Law, Article 145 of the 1932 Revised Penal Code recognized parliamentary immunity from arrest in all cases except offenses punishable by more than 12 years of imprisonment, and penalized a person who violated such immunity.
The 1973 Constitution provided parliamentary immunity from arrest during legislative sessions, except for offenses punishable by more than 6 years' imprisonment. It is a settled rule that the Revised Penal Code cannot enlarge the parliamentary immunity under the Constitution. (Martinez v. Morfe, G.R. No. L-34022, March 24, 1972) Accordingly, a portion of Article 145 of the Code, which provides parliamentary immunity from arrest for an offense punishable by more than six years' imprisonment, is inoperative or unconstitutional.
The 1987 Constitution adopted the rule on parliamentary immunity from the 1973 Constitution. Thus, arresting a congressman for cyber unlawful use of means of publication, which is punishable by less than 6 years of imprisonment, violates parliamentary immunity under the Constitution and constitutes the crime of violation of parliamentary immunity under the Revised Penal Code. On the other hand, arresting a congressman for attempted murder, kidnapping, or r**e, which is punishable by more than 6 years of imprisonment, is not a violation of parliamentary immunity under the Constitution. Thus, it is not a crime.
This writing is exclusively for bar exam reviewees.