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This page was written, edited, reviewed, and approved by Darren T. Moore following our comprehensive editorial guidelines. As the Founding Partner, Darren T. Moore has over 17 years of legal experience as a New York personal injury attorney.

The defendant is the person or company you hold legally responsible for your injuries when you file a personal injury lawsuit. After a serious accident, deciding whom to hold accountable is rarely as simple as pointing to one driver. Naming the wrong party or missing a filing deadline can weaken your case before it truly begins.

At The Law Offices of Darren T. Moore, P.C., we help injured New Yorkers identify everyone who shares the blame and pursue the full compensation they are owed. Knowing who that party is and what they must answer for puts you in a stronger position from the very first day. If you are weighing whether to take the civil litigation path, call our team at (917) 809-7014 for a free case evaluation.

What Is a Defendant in a Personal Injury Case?

In a personal injury case, the defendant is the party you accuse of causing your injuries through negligence, which is the failure to use reasonable care. You are the plaintiff, the injured person bringing the claim. The defendant is the party asked to answer for the harm and, if found liable, to pay compensation.

The label carries real weight. Once a party is named as a defendant, the law gives them rights, deadlines, and a formal chance to fight back. That is why we take care to name each defendant correctly from the start.

Defendant vs. Plaintiff: Who is Who

The difference between a plaintiff and a defendant comes down to who starts the case. A plaintiff files the lawsuit and asks the court for compensation. The defendant, by contrast, responds to and defends against those claims.

Consider a typical car crash. The injured driver is usually the plaintiff, and the driver who caused the collision is the defendant. Some cases involve several defendants, each accused of contributing to the same injury.

A Civil Defendant is Not a Criminal Defendant

Many people picture a criminal trial when they hear the word defendant, but a personal injury case is a civil matter. A civil defendant faces a claim for financial compensation, not jail time or criminal penalties. As the Legal Information Institute explains, a civil defendant is the party a lawsuit is filed against, while a criminal defendant is someone accused of a crime.

That distinction matters because the rules, the burden of proof, and the possible outcomes are different. Our focus stays on the civil side, where the goal is recovering what your injuries have cost you. We pursue compensation for medical expenses, lost wages, and pain and suffering, not a criminal conviction.

Who Can Be Named as a Defendant After an Accident

The defendant is not always the person standing closest to your injury. New York law lets you pursue anyone whose negligence contributed to the harm, and often more than one party shares responsibility. Identifying each of them can be the difference between a partial recovery and a full one.

Depending on how your injury happened, several types of parties may become defendants in your case:

  • At-fault drivers: The motorist whose careless or reckless driving caused a crash is the most common defendant in vehicle injury cases.
  • Property and business owners: When a hazard causes a slip, trip, or fall, the owner or manager who failed to fix it may be liable.
  • Employers: A company can share responsibility when one of its employees injures someone while working. This often applies to delivery drivers, rideshare operators, and other workers on the clock.
  • Product manufacturers: A business that designs, makes, or sells a defective product can be named when that product causes injury.
  • Government and municipal entities: A public agency or authority may become a defendant when a dangerous road, sidewalk, or public vehicle causes harm. These claims follow special rules and shorter deadlines, so they demand fast action.

In many cases, more than one of these parties is liable at once, which can raise the total compensation available to you. Our team investigates every accident to find each party that shares the blame, because an overlooked defendant can mean compensation you never recover.

How a Defendant Enters Your Lawsuit

A party does not become a legal defendant simply because you blame them. New York law sets out a formal process that brings the defendant into the case and gives them a chance to respond. Knowing the steps helps you see where your claim is headed.

Bringing a defendant into your case generally follows a few key steps:

  1. Filing the complaint: We prepare and file a complaint that names the defendant and describes how their negligence caused your injuries.
  2. Serving the papers: The defendant must be formally served with a summons and complaint, the official notice that a lawsuit has begun.
  3. The defendant's answer: Under the state's Civil Practice Law and Rules, a defendant generally has 20 days to respond after personal service or 30 days after service by most other methods (CPLR § 320).
  4. Default when no one responds: If a served defendant ignores the deadline, we can ask the court for a default judgment in your favor.

Each step must be handled correctly, because a mistake in naming or serving a defendant can delay or damage an otherwise strong claim.

Once served, most defendants turn the case over to their insurance company, which hires the defense and controls the response. Recognizing that early helps us prepare for the tactics ahead.

If you have been injured and are unsure who to name or how to begin, our personal injury team can map it out with you. Call (917) 809-7014 to talk through your options in a free case evaluation.

What You Must Prove and How Defendants Respond

Naming a defendant is only the beginning. To recover compensation, you carry the burden of proof, which means showing that the defendant is more likely than not responsible for your injuries. The defendant, in turn, will look for ways to reduce or defeat your claim.

The Burden of Proof Stays With You

In a civil case, you must prove your claim by a preponderance of the evidence, a lower standard than criminal courts use. That means showing it is more likely than not that the defendant's negligence caused your harm.

Practically, we must show that the defendant owed you a duty of care, breached that duty, caused your injury, and left you with measurable losses. For instance, a store owner who ignores a spill for hours breaches the duty to keep the floor reasonably safe. When we connect each of these points with strong evidence, the defendant has far less room to escape responsibility.

Common Defenses Defendants Raise

Defendants and their insurers rely on a familiar set of tactics to limit what they pay:

  • Blaming you: The defendant may argue that your own carelessness caused or worsened the injury.
  • Disputing the injuries: Insurers often claim your injuries are minor, pre-existing, or unrelated to the accident.
  • Delaying the case: Dragging out the process can pressure an injured person into accepting a low settlement.
  • Questioning the evidence: The defense may challenge how and when important evidence was collected.

The blame-shifting tactic matters most in New York, which follows a general rule of pure comparative negligence. Under CPLR § 1411, being partly at fault does not bar your recovery; it only reduces your compensation by your share of the fault.

However, a major 2026 update changed how courts handle motor vehicle accident claims. Under CPLR § 1411(b), sharing blame can completely block your recovery if your fault exceeds 50 percent. If your fault is 50 percent or lower, you can still recover damages. The court simply reduces your final payout by your exact share of responsibility.

Deadlines to Name a Defendant in Your Case

Even the strongest case against a defendant can be lost by waiting too long. The state sets firm deadlines for filing, and some defendants come with much shorter deadlines. Acting early also protects the evidence your claim depends on.

For most personal injury lawsuits, New York gives you 3 years from the date of the accident to file, under the state's statute of limitations at CPLR § 214. Miss that window, and the court can dismiss your case no matter how serious your injuries. Because the clock starts on the date of the accident, the time to act is shorter than many injured people expect.

Claims against a city or public authority move much faster. Before you can pursue many government defendants, you must file a formal notice of claim, usually within 90 days of the injury, under General Municipal Law § 50-e. Missing that notice can end a valid claim before it starts.

Deadlines can also shift depending on the type of claim and the defendant. A case against a medical provider or a product maker may follow a different timeline than a straightforward car crash, so confirming your deadline early is worth the effort.

Beyond the deadlines, early action lets our team preserve evidence, locate witnesses, and identify every defendant while the trail is fresh. The sooner we begin, the more room we have to build a strong claim.

Frequently Asked Questions About Personal Injury Defendants in New York

What is the difference between a plaintiff and a defendant?

The plaintiff is the injured person who files the lawsuit, and the defendant is the party held responsible for the harm. In a personal injury case, you are the plaintiff.

Can there be more than one defendant in my personal injury case?

Yes. Many injury claims involve several defendants, such as a negligent driver and the company that employed them, and each can be held responsible for your losses.

Is the defendant the same as their insurance company?

No, the defendant is the at-fault party, while their insurer usually pays the claim and directs the defense. We handle both on your behalf.

How long do I have to file a claim against a defendant in New York?

Most personal injury lawsuits must be filed within 3 years of the accident, though a claim against a government defendant can require a notice of claim within 90 days.

What happens if the defendant does not respond to my lawsuit?

If a properly served defendant misses the deadline to answer, we can ask the court for a default judgment. That can let you recover without a full trial.

What if the defendant claims I was partly at fault for the accident?

New York's pure comparative negligence general rule means partial fault does not end your claim. For motor vehicle accidents, however, the state now follows a modified comparative negligence rule.

Hold the Right Defendant Accountable With Our New York Injury Team

Figuring out who the defendant should be and proving what that party did is one of the hardest parts of moving forward after an injury. You do not have to sort it out alone. The right guidance early can change the direction of your entire claim.

At The Law Offices of Darren T. Moore, P.C., we identify every party that shares responsibility, handle the filing and service, and stand up to the insurers defending them. From the first call, we work to identify the right defendant and hold that party accountable for what you have endured. Our team treats your case as more than a file, and we keep you informed at each step.

You pay nothing to learn where you stand, and there is no fee unless we win your case. In a free case evaluation, we will review how your accident happened, who the defendant may be, and what your claim could be worth. Call our team today at (917) 809-7014 to protect your right to compensation.

Darren Moore

Darren Moore is the founder of The Law Offices of Darren T. Moore, P.C. and a dedicated New York personal injury attorney. Known for his relentless advocacy and client-focused approach, he has spent his career helping injury victims pursue justice and recover the compensation they deserve. Darren handles a wide range of personal injury matters and is committed to delivering personalized representation for every client.

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