Security Guide
Can Security Guards Detain You in Washington State?
Detainment authority, the shopkeeper's privilege, and the practical policy a disciplined security Team should follow.
The Short Answer
A private security Officer in Washington is a private citizen with a uniform and a license — not a peace officer. There is no statute granting private security independent arrest powers. What exists instead is a narrow set of privileges every professional Officer should be able to recite.
Shopkeeper's Privilege — RCW 4.24.220
Washington gives a merchant, or an agent acting for them, protection from civil liability for detaining a person when there are reasonable grounds to believe merchandise was unlawfully taken, so long as the detention is for a reasonable time and conducted in a reasonable manner. Each of those three words is where cases are won or lost.
- Reasonable grounds means observed conduct, not a hunch or an appearance.
- Reasonable time means as long as it takes to summon law enforcement — nothing more.
- Reasonable manner means no locked rooms, no searches of a person, no force beyond safety.
Citizen's Arrest and RCW 10.31.100
Washington recognizes a limited citizen's arrest for a felony, or a misdemeanor amounting to a breach of the peace committed in the arresting party's presence. RCW 10.31.100 governs what a peace officer may do without a warrant, and understanding that boundary is exactly why our Officers train on it. Guess wrong and the incident becomes unlawful imprisonment, assault, or a civil claim against the property owner who hired you.
Our Policy: Observe, Document, Report
Our Officers are trained on the Task Priority Continuum: life safety first, then property, then documentation. The default response to a theft or trespass is presence, verbal direction, and a detailed report with time stamps, descriptions, and photographs — the material that actually supports a prosecution or an insurance claim. Hands go on a person only in defense of a life. That policy is not timidity; it is what keeps Clients out of litigation and Officers out of court.
Trespass Is the Real Tool
For most retail and residential Clients, a documented trespass admonishment is more effective than a confrontation. Once a person has been lawfully warned, a return visit becomes criminal trespass and law enforcement has a clean charge. Our Patrol Officers build and maintain those records across every site on the route.
What Property Owners Should Ask For
Ask any vendor how their Officers are trained on detainment before you sign. If the answer is vague, you are the one carrying the liability. Ours is written into post orders for every site we cover from Puyallup to Seattle.
Work With Diligence Security
Diligence Security LLC protects people across King, Pierce, Snohomish, Kitsap, and Thurston Counties. Explore our Patrol Officer programs, On-site Security posts, Emergency Fire Watch, and Event Security, or review the Service Areas we cover. Contact us for a site evaluation, or see our Officer training and guard card certification if you are staffing a Team of your own.
Frequently Asked Questions
- Can a security guard detain you in Washington State?
- A private security Officer has no police powers. Limited detainment may be lawful under the shopkeeper's privilege (RCW 4.24.220) when a merchant or their agent has reasonable grounds to believe goods were taken, and only for a reasonable time in a reasonable manner.
- Can a security guard touch you or handcuff you in Washington?
- Physical contact by private security is limited to what a private citizen may lawfully do — generally self-defense, defense of others, or a lawful citizen's arrest for a crime committed in their presence. Handcuffing carries real legal exposure and is not part of our standard practice.
- Do you have to show ID to a security guard in Washington?
- On private property, an Officer may ask for identification as a condition of entry or continued presence. You are generally not legally required to produce it, but the property owner may lawfully ask you to leave.
Protect your people with a Team you can trust and verify.
Request a professional site evaluation or immediate emergency deployment. Local Supervisors respond fast across the Puget Sound.