TL;DR: Personal injury law developed over time to give injured people a way to hold others responsible when careless or wrongful actions cause harm. In California, rules about negligence, product defects, unsafe property, and shared fault can affect whether you have a claim and how much compensation you may receive.
Key Facts
- California adopted the general duty of ordinary care in Civil Code section 1714, which dates back to 1872.
- The California Division of Workers’ Compensation (Cal/OSHA) explains that injured workers historically had to prove employer negligence and could still lose due to defenses such as contributory negligence, the fellow-servant rule, and assumption of risk.
- California adopted its first workers’ compensation law in 1911, and the Boynton Act in 1913 required most employers to provide workers’ compensation coverage and created the State Compensation Insurance Fund, taking effect in 1914.
- California Labor Code § 3852 preserves an injured worker’s right to pursue damages against a responsible third party even when the worker also has a workers’ compensation claim.
- In Greenman v. Yuba Power Products, Inc. (1963), the California Supreme Court ruled that a manufacturer may be responsible when a defective product causes injury.
- In Li v. Yellow Cab Co. (1975), California adopted pure comparative negligence, meaning a plaintiff can still recover even if partly at fault, with damages reduced by the plaintiff’s share of responsibility.
Table of Contents
If you were injured because of someone else’s actions, you may be wondering whether you have a case, who may be responsible, and how you can seek compensation.
Personal injury law has developed over time through court decisions and legislation. Today, California injury claims may involve rules about reasonable care, defective products, unsafe property, and shared responsibility.
These rules apply to many types of cases, including car accidents, slip-and-falls, defective product claims, and other injuries caused by preventable harm.
The Origins Of Personal Injury Law
Personal injury law derives from tort law, the area of civil law that addresses harm caused by another person’s wrongful acts.
Unlike a criminal case, a personal injury claim is usually brought by the injured person to seek compensation for losses such as medical bills, lost income, and pain and suffering. Injury accident attorneys can help injured people understand whether they may have a claim and what compensation may be available.
How Did Personal Injury Law Develop?
Modern personal injury law largely grew out of English common law.
Early courts used different types of claims depending on how an injury happened:
- Trespass generally covers direct injuries caused by another person’s actions.
- Trespass on the case developed to cover more indirect or resulting harm.
Over time, courts began focusing less on whether an injury occurred and more on whether the person who caused it acted carelessly.
That shift helped create modern negligence law.
How Did Negligence Become Important?
By the 1600s and 1700s, English courts were increasingly recognizing that people should take reasonable care to avoid harming others.
American courts later developed the same idea.
One well-known example is Brown v. Kendall (1850). In that case, a man accidentally struck another person while trying to separate two fighting dogs.
The court said that causing an accidental injury alone was not enough to make someone responsible. The important question was whether the person had failed to use reasonable care.
That principle became central to modern personal injury law:
An injury alone does not automatically make someone legally responsible. The injured person generally must show that someone did something wrong and that the wrongdoing caused the harm.
How Did This Become Part Of California Law?
California adopted a similar rule in Civil Code section 1714, which dates back to 1872.
The law establishes the general principle that people are responsible for injuries caused by their failure to use ordinary care.
Today, that idea is still important in many California personal injury cases.
An attorney may look at questions such as:
- Did someone have a responsibility to act carefully?
- Did they fail to do so?
- Did that failure cause the injury?
- What losses resulted from the injury?
These basic questions now appear in many types of claims, including car accidents, pedestrian and bicycle crashes, unsafe property cases, and other injuries caused by negligence.
The Industrial Revolution And The Rise Of Workplace Injury Law
As negligence became an important part of personal injury law, courts developed a framework for determining when careless conduct should impose liability. However, the growth of factories, railroads, mines, and other dangerous industries exposed a problem with relying on ordinary negligence lawsuits for every workplace injury.
An injured worker could sometimes sue an employer, but actually recovering compensation could be difficult. Over time, workers’ compensation systems developed to provide a separate path to benefits for job-related injuries. Today, workers’ compensation lawyers can help injured employees understand how those benefits work and whether another party may also be responsible for the accident.
Why Were Workplace Injury Claims So Difficult?
During the 1800s, industrial work often involved heavy machinery, railroads, mines, and other dangerous conditions. When workers were seriously injured, they generally lacked the workers’ compensation system that exists today.
Instead, a worker seeking compensation from an employer often had to file a lawsuit and prove the employer was negligent.
Even then, several legal defenses could stand in the worker’s way.
For example:
- The fellow servant rule could prevent an employer from being held responsible when another employee’s negligence caused the injury.
- Contributory negligence could prevent recovery if the injured worker was also considered partly responsible.
- Assumption of risk could be used to argue that the worker knew the job was dangerous and accepted those risks by continuing to work.
The California Division of Workers’ Compensation’s history of the system explains that injured workers once had to prove employer negligence and could still lose their cases because of defenses involving their own conduct, a coworker’s actions, or their acceptance of known workplace risks.
This created a difficult situation: a worker could suffer a serious injury on the job but still receive nothing from the employer if one of these defenses applied.
Why Did Workers’ Compensation Develop?
By the early 1900s, states began replacing much of this lawsuit-based system with workers’ compensation.
The basic idea was a trade-off.
Instead of requiring an injured worker to prove that the employer did something wrong, workers’ compensation generally provides benefits for a job-related injury regardless of who caused the accident.
In return, workers usually cannot bring an ordinary personal injury lawsuit against their employer for the same workplace injury.
California was part of this early change.
The state adopted its first workers’ compensation law in 1911, although coverage was initially voluntary for employers. California then passed the Boynton Act in 1913, which required most employers to provide workers’ compensation coverage and created the State Compensation Insurance Fund. The law took effect in 1914.
California’s workers’ compensation system now provides benefits that can include:
- Medical treatment for a work-related injury.
- Temporary disability payments when an injury prevents someone from working.
- Permanent disability benefits for lasting impairment.
- Certain benefits related to returning to work or retraining.
- Death benefits are paid to qualifying dependents when a worker dies from a job-related injury.
The important change was that an injured worker generally no longer had to prove that the employer was careless before receiving these benefits.
Does Workers’ Compensation Replace A Personal Injury Claim?
Not always.
Workers’ compensation usually prevents an employee from suing their employer for an ordinary workplace injury. However, an accident at work can involve someone other than the employer who caused or contributed to the injury.
California law allows an injured employee to pursue a claim against a responsible third party in appropriate cases, even when the employee also has a workers’ compensation claim.
For example, a separate personal injury claim may be possible when a worker is injured by:
- A driver who crashes into them while they are working.
- A defective machine, tool, or vehicle part.
- A negligent contractor or subcontractor.
- A property owner who is responsible for an unsafe condition.
- Another person or business that is not the worker’s employer.
This is commonly called a third-party claim. The term simply means that the injury claim is being made against someone other than the injured worker’s employer.
Why Does The Difference Matter To An Injured Worker?
Workers’ compensation and a personal injury claim do not provide the same types of compensation.
Workers’ compensation provides specific benefits set by California law. A personal injury claim against a responsible third party may allow an injured worker to seek additional losses that workers’ compensation generally does not cover, such as pain and suffering.
The two systems can overlap, but they serve different purposes. This comparison shows what each type of claim may cover and why identifying a responsible third party can matter.
| Issue | California Workers’ Compensation | Third-Party Personal Injury Claim |
|---|---|---|
| Who the claim is against | Usually, the employer’s workers’ compensation insurer. | A person or business other than the employer that caused or contributed to the injury. |
| Do you have to prove fault? | Generally no. Benefits can be available for a work-related injury regardless of who caused the accident. | Usually, the injured worker must show that the third party was legally responsible, although the exact requirements depend on the type of claim. |
| Medical treatment | Covers reasonable medical care for the work-related injury through the workers’ compensation system. | A claim may seek compensation for past and future medical expenses caused by the injury. |
| Lost income | Temporary disability benefits generally replace only part of lost wages, subject to limits set by law. (CalDIR) | A worker may seek proven lost wages and, when applicable, loss of future earning ability. |
| Permanent injury | Permanent disability benefits may be available, but the amount is determined under California’s workers’ compensation rules. (CalDIR) | A third-party claim may seek damages for the financial and personal effects of a lasting injury. |
| Pain and suffering | Generally not available as a workers’ compensation benefit. | May be recoverable from a responsible third party as a type of non-economic damage. California law recognizes pain, suffering, inconvenience, and emotional distress as non-economic damages. |
| Can both claims exist after the same accident? | Yes. Receiving workers’ compensation does not automatically eliminate a claim against someone other than the employer. | Yes. California Labor Code § 3852 preserves an injured worker’s right to pursue damages against a responsible third party. |
The table shows why identifying everyone who may have contributed to a workplace accident matters. Workers’ compensation may provide benefits, but a separate personal injury claim may also be possible when someone outside the employer-employee relationship helped cause the injury.
For example, a construction worker hurt by defective equipment may have both a workers’ compensation claim and a claim against the manufacturer or another responsible company.
Likewise, a delivery driver who is hit by another motorist while working may receive workers’ compensation benefits and pursue a claim against the at-fault driver.
A personal injury attorney can investigate whether another person or business may share responsibility.
Workers’ compensation did not entirely replace personal injury law. It created a separate system for most employee-employer claims while preserving claims against responsible third parties.
What Does “Reasonable Care” Mean?
Negligence law uses the idea of a “reasonably careful person.”
In simple terms, the question is:
Would a reasonably careful person have acted differently in the same situation?
What counts as reasonable care depends on the circumstances.
For example:
- A driver should watch the road and follow traffic laws.
- A store should take reasonable steps to address dangerous spills or hazards.
- A property owner may need to fix unsafe conditions or warn people about them.
- A manufacturer may have a responsibility to make reasonably safe products and provide proper warnings.
For an injured person, the issue is not only whether an accident happened. The question is whether another person or business failed to exercise reasonable care and whether that failure caused the injury.
A personal injury attorney can investigate those facts and help determine whether there may be a valid claim.
As negligence law developed, courts applied these ideas of reasonable care to manufacturers as well. But product injuries raised another question: should an injured consumer always have to prove that a manufacturer was careless, or should a company sometimes be responsible simply for selling a defective product?
How Product Liability Expanded Protections For Injured Consumers
That question helped drive the development of modern product liability law.
As manufactured products became more common and complex, courts began expanding the ways injured consumers could hold manufacturers responsible.
In the past, it could be difficult for an injured consumer to bring a claim against a manufacturer if the consumer did not buy the product directly from that company. Courts gradually changed those rules.
In MacPherson v. Buick Motor Co. (1916), a New York court ruled that a manufacturer could owe a duty of care to people who could reasonably be expected to use its product, even if they did not buy it directly from the manufacturer.
Although this was not a California case, it helped shape the development of modern product injury law in the United States.
California later took product liability a step further.
In Greenman v. Yuba Power Products, Inc. (1963), the California Supreme Court ruled that a manufacturer can be held responsible when it sells a defective product that causes injury.
This is important because an injured person need not always prove that the manufacturer was careless. In some cases, the main questions are whether the product was defective and whether that defect caused the injury.
Product injury claims may involve:
- Unsafe product designs.
- Manufacturing mistakes.
- Missing or inadequate warnings.
- Defective tools, machines, vehicle parts, or consumer products.
A personal injury attorney can help preserve the product, investigate what went wrong, and determine who may be responsible.
How Important California Cases Shaped Injury Claims Today
Several California court decisions helped create the rules that injured people rely on today. These decisions clarified when manufacturers, distributors, and sellers may be responsible for injuries caused by defective products. Together, they helped establish important protections for consumers who are harmed while using products as intended.
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Civil Code Section 1714 And Reasonable Care
California Civil Code section 1714 supports the general rule that people should use reasonable care in their actions and in managing their property.
This rule is an important part of many negligence claims.
For an injured person, one of the first questions is whether the other person or business had a duty to exercise reasonable care.
The answer depends on what happened and the relationship between the people involved.
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Greenman v. Yuba Power Products And Defective Products
In Greenman v. Yuba Power Products, Inc. (1963), the California Supreme Court helped establish modern product liability law in California.
The court ruled that a manufacturer may be responsible when a defective product causes injury.
Today, this rule can apply when someone is injured by a defective machine, tool, vehicle part, household product, or other manufactured item.
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Rowland v. Christian And Unsafe Property
In Rowland v. Christian (1968), the California Supreme Court moved away from older rules that focused heavily on why a person was on the property.
Instead, the court emphasized the broader idea of reasonable care.
This decision remains important in premises liability cases, including injuries caused by:
- Slippery floors.
- Unsafe stairs or walkways.
- Poorly maintained property.
- Dangerous conditions without proper warnings.
A personal injury attorney can investigate who controlled the property, whether a dangerous condition existed, and whether reasonable steps could have prevented the injury.
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Li v. Yellow Cab And Shared Fault
In Li v. Yellow Cab Co. (1975), California changed an important rule about shared fault.
Before this decision, an injured person could be blocked from receiving compensation if they were partly responsible for the accident.
California instead adopted pure comparative negligence.
In simple terms, this means you may still be able to recover compensation even if you were partly at fault. However, your compensation may be reduced based on your share of responsibility.
For example, if your total damages were $100,000 and you were found 20% at fault, your recovery could generally be reduced by 20%.
This rule is important because insurance companies often argue that an injured person shares some responsibility for what happened. Being partly at fault does not automatically mean you have no case.
How These Rules Affect Your Personal Injury Claim Today
The history of personal injury law created the rules attorneys now use to evaluate injury claims.
If you were hurt, an attorney may look at questions such as:
- Who caused the accident?
- Did someone fail to act carefully?
- Did that conduct cause your injuries?
- Are multiple people or businesses responsible?
- Is anyone claiming that you were partly at fault?
- What insurance coverage may apply?
- What evidence is available?
- What losses have you suffered?
- What deadlines apply to your claim?
These questions can come up in many types of cases, including:
- Car accidents.
- Truck accidents.
- Motorcycle crashes.
- Bicycle and pedestrian accidents.
- Slip-and-falls.
- Unsafe property cases.
- Defective product injuries.
A personal injury claim is not only about showing that an accident happened.
You also need to connect another party’s actions to your injuries and losses.
Depending on the case, you may be able to claim damages in a personal injury case, including compensation for medical bills, lost income, pain and suffering, and other losses.
What Types Of Cases Can Personal Injury Law Cover?
Personal injury law can apply whenever a person’s injury may have been caused by another person, business, property owner, manufacturer, or other responsible party. The exact rules depend on how the injury happened and who may be legally responsible.
Common types of personal injury cases include:
- Car and truck accidents. These claims may involve careless driving, speeding, distracted driving, unsafe lane changes, or violations of traffic laws. Commercial truck cases can also involve trucking companies, contractors, or other businesses.
- Motorcycle accidents. A motorcyclist may have a claim when another driver’s actions cause a collision, such as failing to yield, making an unsafe turn, or changing lanes without checking for a motorcycle.
- Bicycle and pedestrian accidents. Drivers have a duty to use reasonable care around cyclists and pedestrians. Claims may arise when a driver fails to yield, drives distracted, speeds, or otherwise causes a collision.
- Slip-and-falls and other unsafe property conditions. Property owners and businesses may be responsible when they fail to use reasonable care to address dangerous conditions, such as slippery floors, broken stairs, poor lighting, or unsafe walkways.
- Defective products. A manufacturer, distributor, or seller may be responsible when a defective product causes an injury. Claims can involve unsafe designs, manufacturing defects, or inadequate warnings.
- Workplace accidents involving third parties. Workers’ compensation usually covers job-related injuries, but a separate personal injury claim may also be possible when someone other than the employer caused the accident. This could include a negligent driver, contractor, property owner, or product manufacturer.
- Other negligence-related injuries. Personal injury law can also apply to situations where someone’s failure to exercise reasonable care causes another person to be injured.
The type of accident is only one part of determining whether you have a claim. An attorney will also look at who caused the injury, what evidence is available, whether more than one party may be responsible, and what insurance coverage applies.
Different cases may also follow different legal rules. For example, a car accident claim may focus heavily on driver negligence and insurance coverage, while a defective-product case may focus on whether the product itself was unsafe. A claim involving a government agency may follow different procedures and have shorter deadlines.
That is why identifying the correct type of claim early can matter. A personal injury attorney can review how the injury occurred and determine which laws, responsible parties, and possible sources of compensation may apply.
Why Speaking With A Personal Injury Attorney Can Help
Personal injury law has developed over hundreds of years, but you do not need to understand all of it before asking for help.
A California personal injury attorney can review what happened and explain which rules may apply to your case.
An attorney may help by:
- Identifying who may be responsible.
- Investigating how the accident happened.
- Gathering and preserving evidence.
- Reviewing insurance coverage.
- Documenting your injuries and financial losses.
- Responding if an insurance company blames you for the accident.
- Negotiating with insurance companies.
- Filing a lawsuit when necessary.
The most important thing is to understand how the law applies to your specific situation.
Case Results From Personal Injury Claims
The value of legal representation often comes down to identifying all available claims, responsible parties, and sources of compensation. Our case results include matters involving premises liability, construction injuries, and cases that overlapped with workers’ compensation.
Every case is different, and past results do not guarantee a similar outcome.
$9,000,000 — A construction accident claim that several law firms had rejected was initially viewed as limited to workers’ compensation. Through extensive discovery and depositions, our team uncovered a substantial third-party personal injury claim. Within three weeks, the case progressed from no settlement offer to a tender of the available policy limits for a deserving client.
$10,000,000 — Our workers’ compensation team secured a $5 million recovery for a client who suffered a traumatic brain injury after falling through a skylight. Pursuing the workers’ compensation claim alongside a separate personal injury action led to a combined $10 million recovery, including a $5 million personal injury settlement.
Frequently Asked Questions About Personal Injury Law
The rules discussed above can affect injury claims in different ways. These common questions explain how some of those rules may apply when you are deciding whether to pursue a claim.
What Do I Need To Prove In A Personal Injury Claim?
In a typical negligence claim, you generally need to show that another person had a responsibility to act carefully, failed to do so, caused your injury, and caused you to suffer losses.
Different types of cases may have different requirements.
What Does Negligence Mean?
Negligence usually means that someone failed to act as a reasonably careful person would have in the same situation.
If that carelessness causes an injury, it may support a personal injury claim.
Can I Still Have A Case If I Was Partly At Fault?
Yes, possibly.
California follows a pure comparative negligence rule. This means you may still recover compensation even if you were partly responsible for the accident.
However, your compensation may be reduced based on your share of fault.
How Can A Personal Injury Attorney Help Me Know If I Have A Case?
An attorney can review the accident, the available evidence, your injuries, and any insurance coverage that may apply.
They can also identify who may be responsible and explain what must be proven before compensation can be recovered.
An attorney can also check important deadlines and special rules that may apply, especially when a government agency, business, manufacturer, or multiple insurance policies are involved.
Seek Legal Help After A Personal Injury In California
Personal injury law has changed greatly over time, but its purpose today is straightforward: to determine when an injured person can hold another person or business responsible for preventable harm.
If you were injured because of someone else’s actions, you do not need to figure out the law on your own.
The lawyers at Arash Law can review your situation at no cost and explain whether you may have a personal injury claim.
Your initial case review is free, and you are under no obligation to move forward after speaking with us. Arash Law handles personal injury cases on a contingency fee basis, meaning you do not owe attorney’s fees unless we obtain a recovery for you. Some case-related costs may still apply regardless of the outcome.
Call (888) 488-1391 to discuss what happened, your injuries, and the legal options that may be available.
