What Law Students Should Know About Dog Bite Liability in 2025

Dog bite liability is a complex area of personal injury law that every aspiring legal professional should understand. As of 2025, various legal theories and jurisdictional nuances continue to shape how these cases are litigated, impacting both dog owners and bite victims.

Types of Liability: Strict and Negligent

Dog bites are primarily divided into two categories: strict liability and negligence.

Many states operate under strict liability statutes, which impose liability on dog owners, irrespective of the owner’s negligence or prior knowledge of the dog’s temperament. 

California serves as a prime example, where no prior history of aggression is required. An owner can be held liable for a dog’s first bite, even if the dog has never shown aggressive behavior before. 

Strict liability can apply even if the owner took reasonable precautions, such as training or leashing the dog. 

However, exceptions exist. 

For instance, strict liability may not apply if the victim was trespassing or was performing a paid service that inherently involved interaction with the dog. 

Victims are advised to seek immediate medical attention, gather all relevant information, and consult with a good dog bite lawyer to explore their legal options.

Negligence

This occurs when an owner fails to exercise reasonable care in controlling their dog. The “reasonable care” standard requires an examination of the owner’s actions and the circumstances surrounding the bite.

The “One-Bite” Rule

Under this rule, an owner is liable only if they knew (or should have known) about their dog’s dangerous propensities. Proving scienter (or knowledge) involves demonstrating prior incidents of aggression. This may include: 

• Previous bites
• Growling
• Lunging
• Specific breed characteristics 

Recent developments, including New York’s Court of Appeals ruling in Flanders v. Goodfellow in April 2025, have expanded the scope of negligence claims. This ruling allows victims to sue based on an owner’s failure to take reasonable precautions, even without a prior history of aggression.

Key Factors in Determining Liability

A history of dog bites, nips, or displays of aggression is highly significant. Leash law violations can serve as strong evidence of negligence.

An owner’s conduct is critical. 

• Failing to restrain a known dangerous dog 
• Ignoring warning signs
• Allowing a dog to roam unsupervised 

These actions can be considered negligent actions that lead to liability.

Circumstances of Dog Bites

Context also plays a role. It includes: 

• Where the bite occurred
• Whether the victim was trespassing 
• Whether the victim provoked the dog
• The dog’s purpose (e.g., police dog, service animal, guard dog) 

A landlord may also be held liable if they knew about a tenant’s dangerous dog and had the power to remove the dog or compel its control.

Defenses to Dog Bite Claims

Provocation can significantly reduce or even eliminate the owner’s liability. Provocation can include teasing, hitting, or otherwise aggravating the animal; trespassing is a good defense, as well.

Where the victim’s own negligence provoked the bite, damages recovered can be proportionately reduced or barred entirely, depending on the jurisdiction.

Damages

Victims may seek various forms of compensation, known as damages. Medical expenses, for example, emergency care, operations, medication, and therapy are considered damages.

Victims may seek compensation for income lost due to time off work for recovery or treatment. 

Non-economic damages include:

• Physical pain
• Emotional distress
• Disfigurement
• Loss of enjoyment of life

In severe cases, punitive damages may be awarded to punish the defendant for particularly egregious or reckless behavior. 

Evidence and Insurance

Strong evidence is crucial for proving a dog bite case. This includes:

• Thorough documentation of the bite wound
• Medical records (and treatment)
• Witness statements
• Evidence of aggressive history or owner negligence

Insurance policies typically cover dog bite liability, providing funds for medical bills and legal defense. 

Coverage varies, however.

Other policies may omit coverage for certain high-risk breeds. Landlords can also require tenants to buy renter’s insurance that includes liability coverage for their pets.

Stay Updated

Dog bite liability requires a nuanced understanding of strict liability, negligence, and the various factors that influence legal outcomes. Law students must appreciate these jurisdictional differences and the critical roles of evidence and insurance in navigating these cases effectively.