Cal. Pen. Code § 837 : CALIFORNIA PENAL CODE — OF CRIMINAL PROCEDURE — ADDITIONAL PROVISIONS REGARDING CRIMINAL PROCEDURE — ARREST, BY WHOM AND HOW MADE — Arrest by private person

A private person may arrest another:

1.For a public offense committed or attempted in his presence.
2.When the person arrested has committed a felony, although not in his presence.
3.When a felony has been in fact committed, and he has reasonable cause for believing the person arrested to have committed it.

Ca. Pen. Code § 837

Enacted 1872.
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