Security Guards vs. Off-Duty Police: Understanding the Difference

This question comes up more often than you might think. A client calls wanting to know if they should hire "off-duty cops" instead of security guards, or a property manager assumes that any person in a uniform has arrest authority. The confusion is understandable, but getting it wrong can create real problems for your property and for the people you're trying to protect.

Let me lay out the actual differences, because they matter for your decision about who to put on your property.

What Off-Duty Police Officers Can and Can't Do

Off-duty police officers working secondary employment in Tennessee are generally working under their departmental secondary employment policies. In Memphis, MPD officers working off-duty typically retain their law enforcement authority, meaning they can make arrests as sworn officers even while working a private security assignment. That's the main thing that distinguishes them from licensed security guards.

However, that expanded authority comes with trade-offs. Off-duty officers are more expensive, often significantly so. Their availability is constrained by their primary police schedule. They may not have the same site-specific training and consistency that a dedicated security officer on your property develops over months. And their liability structure is different: their actions while working off-duty can create complex questions about employer liability.

What Licensed Security Guards Are Authorized to Do

In Tennessee, licensed security guards operate under the Tennessee Private Protective Services Act. They're authorized to observe and report, to detain individuals in specific circumstances under the state's shopkeeper's privilege rules, to control access to the property they're assigned to, and to contact law enforcement when an arrestable situation arises. They are not sworn officers and don't have general arrest authority.

That distinction matters less than many people assume. The vast majority of security situations don't require arrest authority. They require observation, presence, de-escalation, access control, and the ability to call the right people quickly. Licensed security guards handle all of that effectively, and they do it at a cost structure that allows you to maintain consistent coverage.

Which One Do You Actually Need?

Off-duty police make sense in specific scenarios: high-risk environments where arrest situations are genuinely likely, venues where the police presence itself is the deterrent, or events where the optics of law enforcement presence matter. For most commercial properties, retail locations, apartment complexes, office buildings, and medical facilities, a well-trained licensed security officer provides the coverage you need at a sustainable cost.

The more important question than "guard or off-duty cop" is: who's providing them, what's their training standard, and are they consistently the same people on your property? Consistency and training matter more than badge authority for day-to-day commercial security.

Our security officers are licensed under Tennessee requirements and trained to our internal standards. If you want to understand how our coverage model would work for your specific property, visit our Memphis service area page or call (202) 222-2225. You can also reach us through our contact form.