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Encyclopedia entry

Trespass (California Penal Code 602)

The general term for unauthorized presence on property that California law addresses through Penal Code Section 602.

Trespass, in the California context most often discussed in security operations, refers to Penal Code Section 602, which defines numerous specific circumstances constituting criminal trespass, from remaining after being told to leave to entering posted land without permission.

Enforcement of trespass law runs through local police and prosecutors; a property manager or security officer's role is generally limited to documentation, posted notice, and requesting a lawful response, not personally enforcing the statute through force.

Because PC 602 contains many subsections with different requirements, always verify the applicable subsection's current text at the official California Legislative Information source or with legal counsel before relying on a summary — laws change and this is not legal advice.

Related entries

Trespass Letter (No-Trespass Notice)A written notice informing a specific person they are no longer permitted on a property.No Trespassing SignagePosted notice referenced by some trespass-law provisions as evidence that entry was unauthorized.Citizen's Arrest (Private Person's Arrest)The narrow authority under California Penal Code 837 for any private person, including a security officer, to detain someone for certain offenses.

Official sources

  1. [1]Cal. Penal Code § 602 — TrespassCalifornia Legislative Information
  2. [2]Cal. Penal Code § 601 — Aggravated TrespassCalifornia Legislative Information

Links point to the publishing agency or the California Legislative Information text. Government pages are reorganized periodically — if a link moves, search the code section or agency name at the official site.

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General industry and regulatory usage — not legal advice, and not an endorsement by BSIS, the Department of Consumer Affairs, or any law-enforcement agency. Statutes, regulations, and local ordinances change; verify current text at the official government source or with your attorney.

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