Firearm Handling and Use-of-Force Litigation

• ·Purpose, and How to Use This GuideOpen
• Part 1The Case FamiliesOpen
• Part 2The Human-Factors HingeOpen
• Part 3The Standard for Justifiable ForceOpen
• Part 4The Scenarios and the ClaimsOpen
• Part 5The NumbersOpen
• Part 6Legal Theories at a GlanceOpen
• Part 7What the Expert Work Actually InvolvesOpen
• ·What Reasonable Force Looks LikeOpen
• ·Appendix: Sources and NotesOpen
• ·About the AuthorOpen

This guide is for attorneys evaluating or preparing a case in which a firearm was fired by a civilian, a security guard, or a police officer against a person suspected of a crime, most often theft or another low-level offense.

These cases split into two families that get litigated, and analyzed, differently. In the first, the discharge was unintentional: a gun goes off during a struggle, a holster fails, a finger finds a trigger it should not have touched. In the second, the discharge was a decision: the shooter meant to fire and the question is whether that decision was justified. Treating a use-of-force case like a handling case, or the reverse, is the single most common way these matters get mishandled before they ever reach a jury.

This guide sets out the taxonomy, the standards that govern each family, several matters drawn from public reporting to show how the analysis plays out, the legal theories that follow from each fact pattern, and what the expert work actually involves. The figures come from public reporting, court records, and published litigation studies. Estimated numbers are stated as such.

The analytical posture

Every case in this guide comes down to one of two questions. If the discharge was unintentional, the question is whether the shooter violated a firearm handling rule. If the discharge was intended, the question is whether the decision to use deadly force was objectively reasonable given what the shooter knew at the time. Getting the question right is the first job. Answering it is the second, and it is a human-factors determination either way. Part 2 sets out that framework, and it serves whichever side the facts support.

Before any expert opens a file, the first task is sorting the matter into the right family. Everything downstream, the standard of care, the applicable privilege, the theories available to plaintiff and defense, follows from that sort.

1. Unintentional discharge, or handling-violation casesThe shooter did not mean to fire. A gun discharges while being drawn, holstered, or during a physical struggle over control of the weapon. The governing standard is the four cardinal rules of firearm safety, and the question is whether the shooter's handling met that standard. Foreseeability and design of the holster, retention gear, and duty belt often matter here.
2. Intended discharge, or use-of-force casesThe shooter meant to fire and claims the shooting was justified, typically by self-defense, defense of others, or in a narrow set of jurisdictions a citizen's-arrest or fresh-pursuit privilege. The governing standard is reasonableness: what a similarly situated, similarly trained person would have perceived and done given the totality of the circumstances at the moment force was used. Deadly force in defense of property alone is not justified in any state.
3. Hybrid casesMany real matters carry both threads. A guard draws intentionally to detain a shoplifter, meeting the threshold for a use-of-force analysis, and the gun then discharges during the ensuing struggle, meeting the threshold for a handling analysis. The Portland matter discussed in Part 4 is an example: the decision to draw and threaten was a use-of-force choice, and the volume of shots fired through a windshield raises handling and training questions as well.
4. The employer and premises layerAbove the individual shooter sits a second, often larger question: did the security company or property owner put an unqualified, undertrained, or poorly supervised armed person in that position in the first place. This layer runs on ordinary negligence principles, not on the handling or use-of-force standard that governs the shooter, and it is frequently where the largest exposure sits.
5. The public and private divideA civilian or a security guard is a private actor, judged under state tort law, self-defense doctrine, and the shopkeeper's privilege. A police officer is a state actor, and the same shooting is judged under an entirely different track: the Fourth Amendment's objective-reasonableness standard, qualified immunity, and, where a department's policy or training is implicated, municipal liability. The human-factors analysis, the four rules, and the reconstruction work are the same across both tracks. The legal theory that carries the case is not.

Why the sort matters

A handling-violation case turns on the four rules and on equipment and training records: was the finger on the trigger, was the muzzle under control, was the holster adequate for the duty the guard was assigned. A use-of-force case turns on perception and proportionality: what did the shooter see, what alternatives existed, was deadly force proportionate to the threat. Building a handling-violation record in a case that is really about the reasonableness of the decision to shoot, or the reverse, wastes discovery and weakens the eventual presentation to a jury.

Strip either family of case to its core and a single question is left standing: given what the shooter knew and did at that moment, was the outcome consistent with a person handling a firearm correctly and using force reasonably, or not. That is a human-factors question, and it is where my primary expertise lives, in handling, gun-handling violations, and the standards that govern the decision to point a firearm at another human being.

The defense opens the same way in both families

In a handling case, the defense argument is that the gun did not malfunction, the shooter broke a rule. In a use-of-force case, the defense argument is that the shooting was reasonable given a genuine and immediate threat. Both defenses are strongest when they are the whole defense, and both fall apart the same way: when the plaintiff can show, to a professional standard, that the shooter's own conduct does not fit the story the defense is telling.

The same analysis serves either side

This expertise is symmetric, and that is a strength on the stand. The method does not change with the retaining party; only the facts decide the conclusion.

A neutral, standard-based method that reaches whichever conclusion the evidence supports is what survives cross-examination and an admissibility challenge. It also lets me work either side of the docket without contradiction.

The four rules, and what compliance looks like

The universal firearm safety rules are the yardstick for the handling half of any case. Each one maps to a factual question an expert can answer from the video, the physical evidence, and the witness record.

For a more comprehensive discussion of the rules, see any of my books.

The reasonableness half: what the law asks

Where the discharge was intentional, the four rules still matter, they govern how the shot was fired, but the case turns on a separate and prior question: whether the shooter was justified in deciding to fire at all. That question is decided under each state's law of self-defense and defense of others, applied to the totality of circumstances at the moment force was used, not with the benefit of hindsight. The analysis asks what the shooter perceived, whether that perception was reasonable given the training and information available, whether lesser alternatives existed, and whether the force used was proportionate to the threat perceived. Two facts recur across the matters in Part 4 and carry enormous weight in that analysis: whether the suspect was armed, and whether the suspect was moving toward the shooter or away.

Where a police-involved shooting shifts the ground

Two Supreme Court cases carry a police-involved matter that a private-actor matter never reaches. Tennessee v. Garner, 471 U.S. 1 (1985), held that shooting a fleeing suspect who presents no immediate threat is an unreasonable seizure under the Fourth Amendment, the same fleeing-suspect principle at the center of Part 2's civilian analysis, now backed by constitutional weight. Graham v. Connor, 490 U.S. 386 (1989), set the objective-reasonableness standard courts apply to every officer-involved use-of-force claim since: judged from the perspective of a reasonable officer on the scene, without the benefit of hindsight, allowing for the fact that officers make split-second judgments in tense and rapidly evolving circumstances. The human-factors reconstruction underneath that standard, what the officer saw, when, and what alternatives existed, is the same work as the rest of this guide. Qualified immunity, a defense unique to state actors, then asks a second question on top of reasonableness: was the right violated clearly established at the time. Both questions benefit from the same frame-by-frame record.

Part 2 sets out the reasonableness standard in general terms. This Part breaks it into the specific, testable conditions I use to evaluate a shooting decision, the same four conditions I teach in the Wolf Safety Series, and lays out the force continuum that training programs build around them.

The four conditions for deadly force

Deadly force is justified, and likely necessary, only when all four of these conditions exist together. Absence of any one of them removes the justification.

All four conditions have to be tested against the facts as they existed in that moment, not against how the situation looks afterward. A defense expert reconstructs the record to show the four conditions were met. A plaintiff's expert reconstructs the same record to show at least one of them was missing.

Deadly force and serious bodily injury, defined

Deadly force is any type or degree of force that is likely to result in death or serious bodily injury. Serious bodily injury covers injuries that cause death, serious permanent disfigurement, or long-term loss or impairment of the function of any body part. A firearm is not the only means of deadly force, and a fist, a vehicle, or a blunt object can meet the definition depending on the disparity between the parties.

Factors that weigh on the reasonableness of the belief

1. Number of assailantsThree attackers against one defender changes the ability and opportunity analysis even if no single attacker is armed.
2. Physical disparitySize, strength, age, number, and known skill can turn empty hands into a means of deadly force.
3. Weapons, visible or impliedA weapon does not have to be seen to be reasonably believed present; a hand concealed in a waistband during a verbal threat can support the same belief a visible weapon would.

The force continuum

The continuum is the training model that sits underneath the reasonableness standard. It describes the range of responses available before force ever reaches the deadly-force conditions above, and it is the framework most security and law enforcement training programs are built around.

The table below is the quick reference, drawn from matters reported in the public record. Detailed notes follow. Facts here are as reported publicly; verify the current procedural status of any matter before relying on it in a filing.

The loss-prevention shooting.

The San Francisco matter is the cleanest illustration of the reasonableness question stripped to its elements. Surveillance video showed a struggle, a release, and the suspect stepping back toward the guard before the shot. No weapon was recovered. The prosecutor's declination turned on whether the guard's stated fear was reasonable under the totality of the circumstances, the same standard that governs the civil claim. The human-factors work here is a frame-by-frame reconstruction of distance, movement direction, and elapsed time between release and shot, matched against the guard's training in the same decision points.

The parking-lot escalation.

The Portland matter shows how quickly a use-of-force case pulls the employer into the frame. A jury did not stop at judging the guard's split-second decision; it found the property manager, the owner, and the security company independently negligent, reportedly on a theory that the security program's culture and training invited a confrontational response rather than de-escalation. This is the pattern to watch for in intake: when the volume of force, pepper spray followed by multiple rounds through glass at seated occupants, is disproportionate on its face, the case usually is not only about the shooter.

The physical takedown that becomes a shooting.

The Albuquerque matter began as a detention, not a shooting: a tackle, a warning, pepper spray, and only then a firearm, during a struggle over merchandise worth less than the cost of a modest dinner. This sequence matters to the analysis in two ways. First, it shows an escalating use-of-force decision tree in which each step should have been evaluated against the threat actually presented, not against the initial decision to detain. Second, once the gun came out during a physical struggle, the case also picks up a handling-violation thread: was the discharge a deliberate, aimed shot or one that occurred because a hand or body in contact with the weapon caused an unintentional trigger press.

The employer's exposure.

Cervantez is decades old but still does the foundational work: it establishes that a retailer's liability for the conduct of its security personnel does not end with the guard. Negligent hiring, negligent training, and negligent supervision are independent theories that survive even when the individual guard's conduct might otherwise be excused or justified. Every matter in this guide that involves a contracted or in-house guard should be evaluated for this layer in addition to the shooting itself.

The fleeing-suspect standard.

Garner is the reason the fleeing-suspect principle running through Part 2 has constitutional teeth when the shooter is an officer. A private citizen who shoots someone running away with stolen property loses on ordinary self-defense doctrine. A police officer who does the same loses on the Fourth Amendment, decades of settled law, and likely qualified immunity as well, since Garner has clearly established the rule since 1985. The severity of the underlying offense, whether the suspect posed an immediate threat, and whether the suspect was actively resisting or fleeing are the three factors Graham later folded into the general reasonableness test, and they are the same three questions the human-factors reconstruction has to answer with distance, timing, and video.

Reliable, current figures on private-security shootings specifically are scarce; most published data covers negligent security broadly, which includes premises liability for crimes committed by third parties as well as claims against guards themselves. The figures below are approximate and drawn from the sources noted in the Appendix.

Two cautions on these numbers. First, the older study predates the current wave of retail-theft-driven security shootings and should be treated as a historical baseline, not a current prediction. Second, plaintiff win rates in this field are understated by the data available, because strong plaintiff cases settle before trial and never appear in a jury-verdict study. The gap between a documented outcome and a case's true settlement value is where many of these matters are actually won or lost.

The theory a plaintiff pleads should track the case family. A quick reference follows; consult counsel licensed in the relevant jurisdiction for the elements and defenses that apply there.

1. Assault and batteryThe intentional tort claim against the shooter directly. Available in both case families; in a handling case it is typically pleaded alongside negligence in the alternative.
2. Negligence, against the shooterThe claim of choice in an unintentional-discharge case: the shooter owed a duty of reasonable care in handling a firearm and breached it. The four cardinal rules function as the standard-of-care benchmark.
3. Wrongful death and survival actionsFollow from either theory above where the shooting was fatal, brought by the estate or statutory beneficiaries.
4. False imprisonmentAttaches to the detention that preceded the shooting, independent of whether the shooting itself was justified. A detention that exceeded the shopkeeper's privilege in scope, duration, or force can support liability even if the eventual use of the firearm is separately litigated.
5. Negligent hiring, training, retention, and supervisionThe employer-layer theory established in cases like Cervantez. Discovery here targets the guard's licensing status, firearms qualification records, use-of-force policy, and any prior incidents the employer knew or should have known about.
6. Respondeat superior and vicarious liabilityPuts the security company and, depending on the contract structure, the premises owner on the hook for the guard's conduct within the scope of employment.
7. Premises liabilityRuns against the property owner independently of the employment relationship with the guard, on the theory that an inadequately vetted or armed security presence made the premises unreasonably dangerous.
8. Section 1983 excessive force, police onlyThe federal civil rights claim available against a state actor, alleging a Fourth Amendment violation under the Graham v. Connor reasonableness standard. This theory does not reach a private security guard or an armed civilian; it is the defining feature that separates a police-involved matter from the rest of this guide.
9. Monell and failure-to-train claims, police onlyExtends liability to the municipality itself where a policy, custom, or pattern of inadequate training caused the constitutional violation, under Monell v. Department of Social Services, 436 U.S. 658 (1978).

The defenses that answer them

Attorneys retain me to make a complex sequence of seconds clear to a jury. The work is the same discipline whether the case is a handling violation, a use-of-force decision, or both.

Frame-by-frame reconstruction.

Where video exists, from store cameras, body-worn cameras, or bystander phones, the sequence gets broken into discrete decision points: first contact, first show of force, each escalation, and the shot itself. Distance, movement direction, elapsed time, and hand position at each point are measured, not estimated.

Training and policy review.

The guard's state licensing status, firearms qualification records, use-of-force policy, and de-escalation training are compared against the applicable state regulatory minimums and against industry guidance such as the ASIS International standard for private security officer selection and training. For an officer, the comparison runs instead against the department's own use-of-force policy, POST academy and in-service training records, and any prior findings on the officer's file. A gap between the policy on paper and the conduct on video is often the clearest evidence in the case, for either kind of shooter.

Application of the four rules and the reasonableness standard.

Each rule, and, where the discharge was intentional, each element of the reasonableness standard, gets applied to the specific facts, not recited in the abstract. The output is a finding on whether the conduct fell inside or outside the standard of care, stated plainly enough for a jury to follow without a firearms background.

Comparative and foreseeability analysis.

For the employer-layer claims, the question is whether this guard, in this role, with this equipment and this training, was a foreseeable risk to the public the employer chose to accept. Prior incidents, complaint history, and staffing decisions all bear on that question.

Demonstratives and testimony.

Timelines, distance diagrams, and side-by-side comparisons of policy language against video conduct are built to survive a Daubert or Frye challenge and to hold up under cross-examination. That work rests on staying inside the evidence and inside my expertise.

This section is written for the store managers, security companies, and property owners who read these matters after the fact and want to know what should have happened instead. It is also the plainest statement of the standard a jury will be asked to apply.

The decision ladder

Every escalation in a detention should be evaluated against the threat actually presented at that moment, not against the initial decision to intervene. A shoplifting suspect who has not displayed a weapon and is not attacking anyone does not justify skipping rungs on this ladder.

Common questions

Public reporting and records consulted for the figures and matters in this guide. Verify the current status of any active matter before relying on it in a filing.

1. Walgreens, San FranciscoContemporaneous reporting on the April 2023 shooting, the district attorney's declination, and the subsequent civil wrongful death suit.
2. Lowe's, Portland2024 reporting on the guard's criminal conviction and sentencing, and the jury's $20 million negligence verdict against the property manager, owner, and security company.
3. Spirit Halloween, Albuquerque2025 reporting on the criminal complaint and arrest of the security guard involved.
4. Cervantez v. J.C. Penney Co.24 Cal. 3d 579 (1979), California Supreme Court, on false imprisonment, shopkeeper's privilege, and negligent hiring and supervision of store security personnel.
5. Tennessee v. Garner471 U.S. 1 (1985), United States Supreme Court, on the unconstitutionality of deadly force against a fleeing, non-dangerous suspect.
6. Graham v. Connor490 U.S. 386 (1989), United States Supreme Court, establishing the Fourth Amendment objective-reasonableness standard for police use-of-force claims.
7. Monell v. Department of Social Services436 U.S. 658 (1978), United States Supreme Court, on municipal liability under Section 1983 for policy, custom, and failure-to-train claims.
8. Plakas v. Drinski19 F.3d 1143 (7th Cir. 1994), on the absence of a constitutional duty to exhaust non-deadly alternatives before using deadly force that is otherwise justified.
9. The four conditions and the force continuumDrawn from the same framework taught in the Wolf Safety Series, including The Smart Citizen's Guide to Concealed Carry.
10. Negligent security litigation statisticsPublished study of 1,086 reported cases from 1992 to 2001, "Major Developments in Premises Security Liability III," by Norman D. Bates, Liability Consultants, Inc.
11. Shopkeeper's privilege doctrineCommon law and state statutory summaries on the elements, scope, and non-deadly force limitation of the privilege.
12. ASIS InternationalPrivate Security Officer Selection and Training standard, referenced as an industry benchmark for guard training review.

Authored works

Wolf Safety Series, by Steve Wolf: Firearms Safety On Set, The Smart Citizen's Guide to Concealed Carry, and Firearm Product-Defect Litigation.

Contact

Steve Wolf  |  wolf.steve@gmail.com  |  (512) 653-9653  |  SteveWolfExpertWitness.com

Expert Witness in Human Factors, Firearms, and On-Set Safety

Steve Wolf is a nationwide firearms and safety expert witness, retained by plaintiff and defense counsel in civil and criminal matters. In more than thirty-five years of hands-on work across film special effects and firearms handling, spanning seventy-seven feature films as a special effects coordinator, he has built a strong trial record across plaintiff and defense retentions, including a $66.5 million New Mexico verdict that ranks among the largest personal injury verdicts in the state's history. His cases span shootings, gun ranges, and unintentional discharge; use of force by security and armed civilians; pyrotechnics, fire, and explosions; wildfire and property loss; stunts, rigging, and aerial work; on-set and theatrical incidents; and climbing gyms and ropes courses.

Wolf's command of on-set firearm safety placed him at the center of the public analysis of the Rust shooting, the 2021 incident on the New Mexico set of the Alec Baldwin film in which cinematographer Halyna Hutchins was killed and director Joel Souza was injured. Engaged to examine the incident, he laid out how a single-action revolver discharges, why trigger-finger discipline is decisive, and where the production's safety practices broke down. His assessment was sought by national outlets including CNN, Fox News, and CBS, and it drew on his earlier work investigating movie-set shootings, among them the 1993 death of Brandon Lee.

Attorneys retain Wolf because he makes complex cases clear to a jury. He pinpoints the preventable failure, explains causation in plain language, ties conduct to accepted safety and use-of-force standards, builds demonstratives jurors remember, and holds his ground under cross-examination.

His expertise rests on decades in film special effects and firearms work, eleven patents, a growing shelf of published professional reference books, and a long record of firearms instruction and on-set safety supervision. He is the author of the Wolf Safety Series, including Firearms Safety On Set, The Smart Citizen's Guide to Concealed Carry, and Firearm Product-Defect Litigation.

Steve Wolf  |  wolf.steve@gmail.com  |  (512) 653-9653  |  SteveWolfExpertWitness.com