A citizen may conduct an arrest without the need for a warrant if he has personal knowledge that a crime has been committed or in fact is being committed or has been committed and he has personal knowledge that the person he is going to arrest is the one who committed the crime.
Rule 113 of the Rules of Court, sec. 5. enumerates the circumstances in which a private person can make an arrest. The general rules is that, arrest must be made with a warrant of arrest. The exception to this rule is that of sec. 5 as follows:
a private person may, without a warrant, arrest a person:
(a) When, in his presence, the person to be arrested has committed, is actually committing, or is attempting to commit an offense;
(b) When an offense has just been committed and he has probable cause to believe based on personal knowledge of facts or circumstances that the person to be arrested has committed it; and
(c) When the person to be arrested is a prisoner who has escaped from a penal establishment or place where he is serving final judgment or is temporarily confined while his case is pending, or has escaped while being transferred from one confinement to another.
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