Powers to ArrestQuestion 17 of 200

A security guard finds an individual trespassing on posted private property (PC §602). The guard wants to detain the trespasser pending police arrival. The most legally sound approach is:

a.Use overwhelming force to remove the trespasser at once, since a person on posted private property has forfeited any right to careful treatment
b.Ask the person to leave; if they refuse, effect a citizen's arrest for the misdemeanor trespass committed in presence under §837(1), using reasonable restraint, and call police promptly
c.Conduct a full search of the person and their bags while waiting for police, so that any evidence of the trespass is preserved for the responding officers
d.Hold the person for as long as it takes to obtain a true name and identification, since police will not take a report on an unidentified trespasser

Explanation

Trespass under §602 is a misdemeanor; if it occurred in the guard's presence, §837(1) authorizes a citizen's arrest. Best practice is to first issue a lawful warning to leave (often resolves the situation), then effect an arrest with reasonable restraint if the person refuses, and contact police promptly to comply with §847's 'without unnecessary delay' rule. Overwhelming force (a) is unlawful; broad searches (c) exceed limited-search authority; indefinite detention (d) violates §847 and exposes the guard to false-imprisonment liability.

Law Reference: Cal. Penal Code §§602, 837(1), 847

This topic, taught in full in the California Guard Card (BSIS Security Guard) guide. California Guard Card — Complete Study Guide (2026) — PDF + EPUB, $9.99 · 14-day refund →

Practice all 200 questions free — no signup required.

Own the complete California Guard Card (BSIS Security Guard) guide — PDF + EPUB, $9.99 →

Related questions on this topic

Last reviewed: · editorial process

PrepPass team · Verified against California BSIS Guard Card Exam · How we review
Report