Consumer Expectation Test Vs Risk Benefit Test Proving a Design Defect in Product Liability Cases

Product Liability Compass Law Group, LLP — (213) 320-1001
Published · Updated
and, where applicable, the plaintiff. Under pure comparative fault, even a plaintiff who bore some responsibility for the accident can still recover a proportional share of damages from other liable parties. Defendants in design defect cases routinely raise the “product misuse” defense — arguing the plaintiff used the product in a way no designer could have foreseen — but courts scrutinize this defense rigorously when the challenged use was actually a common alternative application the manufacturer should have accounted for.

Design defect claims frequently overlap with other personal injury theories. When a property owner knowingly deploys defective industrial equipment on the job site, the injured worker may face a parallel premises liability claim alongside the product liability action. When a defective vehicle component contributes to a collision, our car accident lawyer team works in tandem with the product liability practice to ensure that every responsible party — the at-fault driver, the vehicle manufacturer, and any component-part supplier — is named and pursued. Our personal injury practice is built around exactly this kind of multi-defendant, cross-practice analysis that leaves no viable source of recovery on the table.

What Damages Can California Design Defect Victims Recover?

California injury victims who prevail on a design defect claim — under either the Consumer Expectation Test or the Risk-Benefit Test — are entitled to seek the full spectrum of compensatory damages. Economic damages encompass every verifiable financial loss: past and future medical expenses (emergency treatment, surgeries, hospitalizations, physical and occupational therapy, durable medical equipment, in-home nursing), lost wages from time missed at work, and diminished earning capacity when the injury permanently alters the victim’s ability to earn a living. Severe injuries — including traumatic brain injuries, spinal cord damage, and limb amputations — can generate economic damage awards in the millions of dollars once future care costs are properly projected by a qualified life-care planning expert.

Source: Compass Law Group | Product Defect Design Claims

Compass Law Group case results across multiple practice areas

Non-economic damages — physical pain and suffering, emotional distress, loss of enjoyment of life, disfigurement, and loss of consortium — typically represent the largest component of a design defect recovery and are not subject to any cap in California product liability cases. When the evidence shows the defendant engaged in particularly egregious conduct — for example, concealing a known design failure from regulators or consumers — California Civil Code § 3294 authorizes an additional award of punitive damages designed to punish and deter the misconduct. California imposes no statutory cap on punitive damages in product liability actions, making the stakes for willful concealment exceptionally high.

Settlement values in California design defect cases vary with injury severity, the defendant’s financial resources, and the strength of the safer-alternative-design evidence. Catastrophic injuries involving permanent paralysis or severe neurological damage routinely command seven-figure settlements or trial verdicts. Even moderate injuries with clear liability can support six-figure recoveries when properly presented. Our attorneys from Bell Gardens to San Francisco use a $250 million litigation track record as leverage at every negotiating table. For a California consumer’s perspective on the same strict liability framework applied to a different product category, our article on whether manufacturers are liable for dangerous playground equipment covers closely related ground.

California Product Defect Design Claims Statistics

The numbers that define the defective product crisis in the United States help explain why California developed one of the nation’s most robust product liability frameworks — and why knowing which legal test applies can mean millions of dollars in recovery:

Source: Compass Law Group | Product Defect Design Claims — scene 1 | Los Angeles, CA
Source: Compass Law Group | Product Defect Design Claims | Los Angeles, CA

29.4 million+ — the estimated number of consumer product-related injuries treated in U.S. hospital emergency departments each year, according to the CPSC’s National Electronic Injury Surveillance System (NEISS). This figure captures only injuries serious enough to require emergency care — the true incidence of product-related harm is substantially higher.

$500 billion+ — the estimated annual economic burden of unintentional injuries in the United States, including medical costs, lost productivity, and quality-of-life losses, according to the CDC’s Web-based Injury Statistics Query and Reporting System (WISQARS). Product design failures account for a substantial share of this national toll.

900+ — the approximate number of consumer product safety recalls issued by the CPSC in a recent year, covering goods ranging from children’s furniture and power tools to kitchen appliances and recreational equipment. A significant portion of these recalls are triggered by design defects that rendered the products unreasonably dangerous under the Consumer Expectation or Risk-Benefit standard.

30 million+ vehicles are recalled annually by manufacturers in response to NHTSA safety defect investigations, with design flaws in steering assemblies, braking systems, fuel components, and structural frames among the most common triggers for recalls involving severe injury risk. If a vehicle design defect contributed to your crash, you may have a product liability claim in addition to any automotive negligence recovery.

How Compass Law Group Fights for California Design Defect Victims

As a team of dedicated Los Angeles personal injury attorneys, Compass Law Group, LLP — led by Managing Partners Joseph Shirazi (Bar #265403) and Simon Esfandi (Bar #275307) — has spent years fighting against some of the largest and most heavily resourced manufacturers, distributors, and retailers in the country. With more than $250 million recovered for injury victims across California, we bring proven results, deep expert networks, and an aggressive litigation posture to every Consumer Expectation and Risk-Benefit case we handle. We practice exclusively on a No Win, No Fee basis — meaning you owe nothing unless we secure a recovery for you.

Source: Compass Law Group | Product Defect Design Claims — scene 2 | Los Angeles, CA
Source: Compass Law Group | Product Defect Design Claims | Los Angeles, CA

From the moment you retain us, we move immediately: preserving evidence, serving spoliation notices on all potential defendants, and retaining qualified engineering, safety, and economic experts capable of translating complex technical deficiencies into terms a jury will understand and believe. We identify every entity in the product’s chain of distribution — designer, component supplier, manufacturer, distributor, and retailer — and assess viable claims against each, maximizing both your sources of recovery and your settlement leverage. California’s diverse communities deserve equal access to this level of representation, which is why we also provide product liability resources in Spanish for our Spanish-speaking clients throughout the state.

We serve clients from offices in Beverly Hills, Long Beach, Los Angeles, San Francisco, Sacramento, Oakland, and Bell Gardens. Whatever product design failure injured you, our Los Angeles product liability practice has the resources, the expert relationships, and the trial experience to take your case from the initial investigation through verdict — or to the negotiating table — and achieve the full and fair result your family deserves. Call us today at (213) 320-1001 for a free, no-obligation consultation.

⚠ California Statute of Limitations: Personal injury claims — including product liability design defect actions — must generally be filed within two years of the date of injury under California Code of Civil Procedure § 335.1. Important exceptions may apply: if the injury was not immediately discoverable, the clock may begin running from the date you knew or reasonably should have known about the defect and its connection to your harm (the “discovery rule”). Claims against government entities require a government tort claim within six months of injury. Do not delay — physical evidence is lost, witnesses’ memories fade, and courts will not extend the limitations period for delay in seeking legal help.

Q: What is the main difference between the Consumer Expectation Test and the Risk-Benefit Test in California design defect cases?

The Consumer Expectation Test (CACI 1203) asks whether the product performed as safely as an ordinary consumer would expect and requires no engineering expert on the plaintiff’s side to establish the defect. The Risk-Benefit Test (CACI 1204) places the burden on the defendant to prove the design’s benefits outweigh its risks once the plaintiff shows causation — it is more analytically rigorous and typically requires expert testimony from both sides. California allows plaintiffs to plead both tests in the alternative in a single lawsuit, which experienced product liability attorneys frequently do to maximize the chance of establishing liability.

Q: Do I need an engineering expert to win a design defect case in California?

Under the Consumer Expectation Test, engineering expert testimony is not required to establish the design defect itself — the jury applies its own ordinary knowledge to evaluate whether the product was unreasonably dangerous. However, expert testimony on causation and damages is almost always necessary. Under the Risk-Benefit Test, expert witnesses are effectively required on both sides to analyze the availability of a safer alternative design and the technical feasibility of implementing it. For any case involving a complex product — an automobile, a medical device, industrial machinery — retaining a qualified forensic engineer is essential regardless of which test is applied.

Q: Can I sue the retailer who sold me a defective product even if they didn’t design or manufacture it?

Yes. Under California’s stream-of-commerce strict liability doctrine, every entity in a product’s commercial chain of distribution — including the retailer — can be held strictly liable for design defects, even if the retailer played no role in creating the dangerous condition. The California Supreme Court established this principle to ensure that injured consumers always have an accessible, solvent defendant to pursue. Retailers have the right to seek indemnification from the upstream manufacturer, but the injured consumer is not required to bear the risk of the manufacturer’s insolvency or unavailability.

Q: What is a “reasonable alternative design” and why does it matter to my case?

A “reasonable alternative design” (RAD) is a safer version of the product that the manufacturer could have adopted at the time of manufacture without significantly impairing the product’s utility, performance, or market price. Under the Risk-Benefit Test, demonstrating that a feasible RAD existed is the single most powerful way to prove the defendant’s design was unreasonably dangerous — it shows the harm was preventable, not inevitable. Your attorney’s forensic engineering expert will typically identify, model, and cost-quantify one or more alternative designs and explain how adoption would have prevented your specific injury, forcing the defendant to prove why it chose the more dangerous option.

Q: How long do I have to file a product liability design defect lawsuit in California?

California Code of Civil Procedure § 335.1 generally gives injury victims two years from the date of injury to file a personal injury lawsuit, including product liability design defect claims. However, the “discovery rule” may extend this deadline if you did not know — and could not reasonably have known — that the product’s design caused your injury. Claims against government entities (such as a municipal transit agency that used a defective vehicle) require a government tort claim within six months of injury. Because exceptions are narrow and courts apply them strictly, you should consult a California product liability attorney as soon as possible after any product-related injury.

Contact Compass Law Group — Free Case Evaluation

No Win, No Fee — Compass Law Group, LLP | Call (213) 320-1001

Source: Compass Law Group | Product Defect Design Claims

Product Defect Design Claims statistics infographic — Compass Law Group

Steps to Take After a Defective Product Injury

If a defectively designed product caused your injury, the actions you take in the hours and days immediately following can have a profound effect on the strength of your legal claim. California’s evidentiary standards require documented proof of both the design defect and the causal link between that flaw and your injuries. Follow these steps to protect your rights from the outset:

Contact Compass Law Group — Free Case Evaluation

Free Confidential Consultation — Compass Law Group, LLP | Product Defect Design Claims

  1. Seek emergency medical care immediately. Call 911 or go to the nearest emergency room. Your health is the priority — and a contemporaneous medical record documenting the nature and timing of your injuries is one of the most critical pieces of evidence in your case.
  2. Preserve the defective product and all packaging. Do not discard, repair, clean, or return the product to the manufacturer or retailer. Preserve it exactly as it was at the moment of injury, together with its original packaging, assembly instructions, warranty documentation, and any accompanying safety labels. The product itself is typically the most important physical evidence in a design defect claim.
  3. Document everything with photographs and video. Photograph the defective product — including any broken, deformed, or malfunctioning components — the scene of the injury, and your injuries themselves. Capture the product’s model number, serial number, date-of-manufacture code, and any safety warnings or certification marks.
  4. Collect and preserve all medical records. Request copies of every emergency room report, physician note, imaging study, surgical record, pharmacy prescription, and physical therapy session record related to your injury. These records document both the nature and extent of your harm and anchor your damages calculation.
  5. Report the defect to the CPSC at SaferProducts.gov. Filing a consumer complaint creates a contemporaneous government record of the hazard, may trigger a formal safety investigation, and can protect other consumers from the same dangerous product.
  6. Identify witnesses and preserve their contact information. Collect the names, phone numbers, and email addresses of anyone who witnessed the accident, observed the product’s dangerous condition before the incident, or has knowledge of prior similar complaints about the same model.
  7. Contact a California design defect attorney without delay. The two-year statute of limitations begins running from the date of injury. An attorney can immediately send evidence-preservation (spoliation) notices to all potential defendants, retain forensic engineers, and begin constructing your case before critical evidence disappears or is intentionally destroyed.

Source: Compass Law Group | Product Defect Design Claims

Compass Law Group office — schedule a free consultation

Get Your Free Consultation Today

If a defectively designed product injured you or a loved one, Compass Law Group’s California product liability attorneys are ready to evaluate your Consumer Expectation or Risk-Benefit claim at no cost — and you pay nothing unless we win.

References

  1. California Code of Civil Procedure § 335.1 — Two-Year Statute of Limitations for Personal Injury Claims
  2. National Highway Traffic Safety Administration — Vehicle Safety Defects and Recalls
  3. Centers for Disease Control and Prevention — Web-based Injury Statistics Query and Reporting System (WISQARS)
Joseph Shirazi — Managing Partner, Compass Law Group

Joseph Shirazi
Managing Partner, Compass Law Group, LLP
California Bar #265403
Past results do not guarantee future outcomes. Every case is unique.

Do I have a case?

Contact us today for a free consultation.

This field is for validation purposes and should be left unchanged.

California's
Gold Standard
Injury Law Firm

With Joseph Shirazi and Simon Esfandi at the helm, our firm is a trusted name in accident law in California.

Meet Our Managing Partners

Joseph Shirazi
Managing Partner · CA Bar #265403

National Top 100 Trial Lawyers and Avvo 10.0 Superb. Loyola Law School graduate. Recognized for his $14,500,000 truck accident verdict and a $13,000,000 trial verdict.

Read Full Bio →
Simon Esfandi — Managing Partner
Simon Esfandi
Managing Partner · CA Bar #275307

Super Lawyers Rising Star. Southwestern Law School graduate. Led the firm’s $9,870,000 motorcycle accident settlement and a $2,250,000 rideshare recovery.

Read Full Bio →
Firm Recognition
  • ★ National Top 100 Trial Lawyers
  • ★ Super Lawyers Rising Star
  • ★ Avvo 10.0 Superb Rating
  • ★ Top 40 Under 40
  • ★ Consumer Attorneys of California · CAALA · AAJ
Total Recovered for Clients
$250,000,000+
$14.5M truck verdict · $13M trial verdict · $9.87M motorcycle · $5M car accident
Past results do not guarantee future outcomes. Every case is unique.
Client Rating
★★★★★ 5.0
193+ verified Google reviews · No win, no fee