Who Is Liable for a Security Guard’s Negligence or Misconduct?

December 29, 2025 | By Greenslade Cronk LLP
Who Is Liable for a Security Guard’s Negligence or Misconduct?

In a country where private security guards now outnumber police officers, the risks tied to negligent conduct by security personnel are growing, but accountability doesn’t always follow. 

When a security guard fails to protect the public through negligence or misconduct, they open the door to violence, injuries, or needless fatalities. These negligent security incidents often occur in places where safety should be a top priority: stadiums, hotels, concerts, parking garages, and apartment complexes. 

Yet when serious harm results from misconduct or inaction, many people don’t realize they may have grounds for a negligent security lawsuit. Whether a guard mishandled a situation, allowed a dangerous person onto the premises, or failed to act during a crisis, legal responsibility may extend beyond the guard. 

The company that hired them or the property owner who failed to implement proper safety protocols may also be held accountable. If you’ve been seriously hurt because a guard failed to do their job, a negligent security lawyer can identify all liable parties, help you explore your legal options, and fight for your full and fair compensation.

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Key Takeaways: Understanding Liability for Security Guard Negligence

  • Security guards have a legal duty to protect the public from foreseeable harm while on the job.
  • Employers, property owners, and contracted security firms may all be liable when negligence leads to injury.
  • Victims may file a negligent security lawsuit if a guard’s actions or inaction contributed to their injuries.
  • Liability depends on whether the danger was foreseeable and preventable with proper security measures.
  • An experienced negligent security lawyer can investigate the chain of accountability and help document losses.

How Negligent Security Lawsuits Work

Negligent security is a type of premises liability claim. It focuses on what property owners or businesses failed to do to protect people on their property. When a security guard is involved, these claims often allege that a property owner hired unqualified personnel or failed to provide adequate training, oversight, or staffing.

Negligent security claims typically involve injuries from criminal acts that a responsible property owner could have anticipated and taken steps to prevent. Under California law, business and property owners have a legal obligation to provide reasonable security, especially in areas with a history of violent incidents.

To support a claim, plaintiffs must typically show:

  • A dangerous condition or risk of harm existed on the property.
  • The harm was foreseeable and could have been prevented.
  • The security guard or responsible party failed to act reasonably.
  • That failure directly contributed to the injury.

Even when a crime is committed by a third party, such as a fight, robbery, assault, or shooting, the law may still hold the property owner and their hired security responsible if better precautions could have made the attack less likely to occur.

Common Examples of Security Guard Negligence

Security guards are hired to protect property and ensure the safety of guests, residents, or customers. When they fail in that duty, the result can be serious injury or even death. Not all incidents are dramatic. Sometimes it’s a moment of inattention or poor training that allows a situation to escalate.

Here are some common examples of negligent or reckless conduct by security personnel:

  • Allowing unauthorized individuals into a restricted or private area
  • Failing to intervene in a fight, robbery, or assault in progress
  • Ignoring a threat or suspicious behavior reported by patrons
  • Using excessive force or injuring someone while detaining them
  • Abandoning a post during critical moments, such as event exits
  • Sleeping on duty, leaving an entry point unattended, or being impaired

Actions like these may constitute breaches of a legal duty, rather than mere mistakes. The law recognizes that even the absence of action, when action is clearly required, can amount to negligence.

Who May Be Liable for Security Guard Misconduct?

Determining who is financially responsible for injuries linked to a security guard’s misconduct isn’t always straightforward. The guard whose negligence led to the incident isn’t normally held liable due to a lack of resources. That’s why lawsuits often focus on companies with greater responsibilities and deeper pockets.

Property owners and businesses

Under California Civil Code Section 1714, property owners have a duty to maintain reasonably safe conditions and protect guests from foreseeable harm. If they failed to hire properly trained guards or ignored a pattern of dangerous incidents on their property, they could be held liable.

Private security companies

Many commercial properties hire third-party security companies. These firms are responsible for vetting their guards, training them, and enforcing policies. If they failed to train a guard properly or retained an employee with a known history of misconduct, they may share legal responsibility.

Employers and managers

Sometimes security is handled in-house by the business or venue itself. In such cases, the company’s leadership may be held accountable for negligent hiring, inadequate supervision, or failure to discipline employees who pose a danger.

Liability often depends on the specific facts of the case. A thorough investigation by a qualified negligent security lawyer is often the only way to uncover who should be held accountable.

One of the most important elements in a negligent security lawsuit is foreseeability, which refers to whether the harm could have been reasonably predicted based on prior incidents or known risks.

Property owners and businesses are not expected to prevent every crime. But if there’s a pattern of violence or a clear danger in the area, the law may require them to take additional steps to protect visitors.

Courts often look at prior similar incidents on or near the premises to determine foreseeability. For example, if a nightclub had multiple past assaults in its parking lot but never added lighting or security patrols, future attacks may be deemed foreseeable. 

Similarly, if a stadium hired guards with no training and one of them injured a fan during a chaotic crowd exit, the employer may be liable for failing to prevent a foreseeable risk.

In California, courts have long held that landowners owe a duty to maintain their property in a condition that does not pose an unreasonable risk of harm. This duty includes taking precautions against foreseeable third-party criminal acts. The landmark case Delgado v. Trax Bar & Grill, 36 Cal.4th 224 (2005), confirmed that foreseeability plays a central role in determining the scope of a property owner’s duty of care.

How Comparative Fault Affects Your Case in California

California follows a pure comparative fault rule under California Civil Code Section 1431.2. This rule holds that if the injured person is partially responsible for the incident, they may still recover damages, though their compensation may be reduced by their percentage of fault.

This rule may come into play in security negligence cases where a victim may have ignored posted warnings, entered a restricted area, or been involved in a verbal altercation that escalated. 

That does not mean the injured party loses their right to sue. If the security guard or employer bears any responsibility, the victim may still pursue compensation. An experienced negligent security lawyer counters unfair blame-shifting to keep the focus on the security guard’s negligence and protect the value of the victim’s claim.

What Does it Take to Prove Negligent Security?

Bringing a successful negligent security lawsuit requires strong evidence. It’s not enough to show that a guard made a mistake. You must prove that the property owner or security company breached a legal duty and that this failure led directly to your injury.

Here are the essential elements that must be demonstrated:

  • A duty of care existed between the injured person and the property owner or business.
  • The property owner or security company failed to meet that duty by providing inadequate security.
  • The injury resulted from a foreseeable risk, such as a violent crime or crowd surge.
  • The security guard’s negligence contributed directly to the harm.
  • You suffered compensable losses, such as medical bills, lost wages, or emotional trauma.

Evidence may include surveillance footage, eyewitness statements, incident reports, prior crime records, and expert opinions. Many negligent security cases require in-depth investigation and legal discovery to uncover how the incident occurred and what the defendant failed to do.

How An Attorney Can Build a Strong Negligent Security Case

Because negligent security cases often involve private businesses or third-party contractors, key evidence may not be easily accessible without legal help. A negligent security lawyer plays an important role in gathering the right documentation and building a compelling claim.

Attorneys can send legal notices to preserve video surveillance, obtain security logs, or request copies of internal policies and incident reports. If surveillance footage shows the guard left their post or failed to intervene, it can be powerful evidence in court.

Lawyers may also interview eyewitnesses, hire security experts to assess whether industry standards were followed, or review crime statistics in the area to show that better precautions should have been taken. These efforts are critical to proving that the property owner or security firm breached their legal duty of care.

Types of Compensation in a Negligent Security Lawsuit

If a negligent guard or employer is found liable for your injuries, you may recover compensatory damages that help you recover the financial, emotional, and physical costs. Depending on the circumstances, compensation in a negligent security case may include:

  • Medical expenses: Emergency care, hospitalization, surgeries, and future treatment
  • Lost income: Time missed from work or loss of future earning capacity
  • Pain and suffering: Physical pain, emotional distress, or trauma from the incident
  • Property damage: Costs to repair or replace items lost during a crime or attack
  • Loss of enjoyment of life: Long-term impact on quality of life or daily activities

In rare cases involving gross negligence, punitive damages may also be available. However, these are not automatic and usually require proof that the defendant acted with reckless disregard for public safety.

FAQs About Negligent Security Guard Lawsuits

What is the statute of limitations for filing a negligent security claim in California?

The statute of limitations (California Code of Civil Procedure Section 335.1), generally allows you two years from the date of the injury to file a personal injury lawsuit. There are exceptions for minors or delayed discovery of harm, but it’s best to act quickly so evidence doesn’t disappear.

Can I sue a business even if the attacker was a third party?

Yes. If the business or property owner failed to provide reasonable security despite knowing about past threats or dangers, they may be liable for a third party’s criminal conduct. The focus is on what the property owner could have done to prevent the incident.

What if the security guard was a contractor?

You may still have a claim. Many security guards work for third-party companies, but that does not protect the business or venue from liability. Both the security firm and the property owner could be named in a lawsuit depending on the facts.

What kinds of businesses are most often involved in negligent security lawsuits?

Negligent security claims frequently involve large public or commercial properties such as apartment complexes, hotels, concert venues, shopping centers, and parking garages. These businesses are expected to anticipate safety risks and put proper measures in place, especially in high-traffic or high-risk areas.

Is video surveillance footage important in a negligent security lawsuit?

Yes. Security camera footage can be a key piece of evidence. It may show whether guards were present, how they responded, and what actually happened before and during the incident. If you suspect footage exists, an attorney can act quickly to preserve it before it's lost or deleted.

How much does it cost to hire a negligent security lawyer?

At Greenslade Cronk, we work on a contingency fee basis. That means you don’t pay anything upfront — no hourly rates, no retainers, and no out-of-pocket legal expenses. We only get paid if we win compensation for you. Our fee is a percentage of the final settlement or jury award, which we’ll explain clearly during your free consultation. 

Take Control of Your Case Today. Call for a Free Consultation

Security guards are hired to protect people, not to facilitate crime through negligence and misconduct. When that responsibility is broken, it’s people like you who pay the consequences. 

You should never be left alone to deal with the physical, emotional, and financial repercussions of someone else’s carelessness. Call Greenslade Cronk today and level the playing field against corporate insurers who fight to minimize or deny your claim.  

We are the Los Angeles personal injury law firm that other law firms trust to handle complex, high-stakes injury cases. After spending years working with families who’ve been blindsided by preventable violence and serious injury, we know how much is at stake, and we are fully committed to helping you recover. 

Call (323) 747-7474 today or contact us online for a free, confidential consultation with a trial lawyer you can trust.

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