When Arrest May Be Made Without Warrant (Sec. 2, Art. III)

A peace officer or private person may, without a warrant, arrest a person:

1. When, in his presence, the person to be arrested has committed, is actually committing, or is attempting to commit an offense;

2. When an offense has in fact just been committed and he has personal knowledge of facts indicating that the person to be arrested has committed it; and

3. 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 temporarily confined while his case is pending, or has escaped while being transferred from one confinement to another.