A dog attack can happen in seconds. You may be walking through your Fontana neighborhood, visiting a park, approaching a home, or simply getting out of your car when an uncontrolled dog runs toward you and bites. After the initial shock, many victims are left wondering whether the fact that the dog was off-leash changes their legal rights.

Last reviewed by John Michael Montevideo, September 2026
In many cases, an off-leash dog can provide important evidence about how an attack occurred and whether the owner failed to properly control the animal. However, California’s dog bite law generally does not require you to prove a leash-law violation before holding a dog owner responsible for a bite.
Is a Dog Owner Liable If Their Off-Leash Dog Bites Me in Fontana?
Yes, a dog owner may be liable when an off-leash dog bites someone in Fontana, even if the dog has never bitten anyone before. California generally imposes strict liability on dog owners when their dog bites someone who is in a public place or lawfully on private property.
Under California Civil Code § 3342, an injured person generally does not need to prove that the owner knew the dog was aggressive or had previously attacked someone.
This is sometimes misunderstood as California’s rejection of a “one free bite” rule. A dog’s first known bite can still result in owner liability.
The fact that the dog was roaming without a leash can provide additional evidence concerning the circumstances of the attack and the owner’s control of the animal.
Important: An owner generally cannot avoid California’s dog bite statute simply by saying, “My dog has never done this before.”
Does Fontana Have Rules About Dogs Running Off-Leash?
Yes. Fontana has local animal-control provisions addressing dogs running at large and dog restraint, which can become relevant after an off-leash attack. The circumstances and location of the incident will determine which local rules apply.
The City of Fontana identifies “Animals at Large” under Fontana Municipal Code § 4-2 among its animal ordinances. City materials also identify dog-restraint/leash requirements.
This matters because an animal-control investigation may document that the dog was loose, roaming, or otherwise uncontrolled when the attack occurred. That evidence can help establish exactly what happened, particularly if the dog’s owner later gives a different account.
An off-leash violation and a civil dog bite claim are related issues, but they are not the same thing. California Civil Code § 3342 can impose liability for a qualifying bite even when no separate leash violation is established.
Should I Report an Off-Leash Dog Bite in Fontana?
Yes. Reporting the attack can protect public safety and create an official record containing details that may later become important to your injury claim.
The City of Fontana specifically lists dog bite investigations and vicious or roaming animals among the matters handled through Fontana Police Dispatch and Animal Services. You can review the city’s Fontana dog bite and animal incident reporting information for current reporting procedures.
An animal control report may document information such as:
- The identity and contact information of the dog’s owner
- Where the attack happened
- Whether the dog was running loose
- Statements from the owner or witnesses
- The dog’s vaccination or licensing information
- Whether authorities have received previous complaints involving the animal
- Steps taken by animal-control authorities following the incident
If you are physically able to do so safely, also photograph the location where the attack occurred. Images showing an open gate, damaged fence, lack of restraint, or other relevant conditions may become useful evidence.
What Should I Do Immediately After an Off-Leash Dog Bite?
Get to safety, obtain appropriate medical treatment, report the bite, identify the dog and owner if possible, and preserve evidence of your injuries and the scene.
Dog bite wounds can be more serious than they initially appear. In addition to puncture wounds and lacerations, an attack can cause nerve injuries, tendon or orthopedic damage, infection, facial injuries, and permanent scarring.
Victims may also experience anxiety, nightmares, fear of dogs, difficulty returning to the location of the attack, or other psychological effects. These consequences should not be dismissed simply because they are less visible than a physical scar.
Keep copies of medical records, bills, prescriptions, photographs, communications with the dog’s owner, and any correspondence from an insurance company. Continue photographing visible wounds and scars as they heal.
What If the Dog Owner Says I Caused the Attack?
An accusation that you provoked the dog does not automatically defeat your claim, but the circumstances surrounding the encounter can affect the case.
California’s strict liability law is powerful, but defenses may still arise. For example, disputes can involve whether the injured person was lawfully on private property or whether their conduct contributed to the incident.
California also follows principles of comparative negligence. Depending on the facts, compensation may be affected if an injured person is found partly responsible for causing the injury.
This is one reason victims should be cautious about giving detailed recorded statements to an insurance adjuster immediately after an attack. A seemingly innocent statement can later become part of a dispute over how the bite happened.
Who Usually Pays for a Dog Bite Injury?
Dog bite claims are frequently paid through applicable insurance rather than directly from the dog owner’s personal funds.
Depending on where and how the attack occurred, homeowners or renters insurance liability coverage may provide coverage for a dog bite claim. Other insurance may potentially apply in certain circumstances.
Insurance companies may investigate the attack quickly. Their evaluation, however, may not immediately account for the full long-term effect of an injury, especially when scarring, plastic surgery, nerve damage, or psychological trauma is still developing.
Dog Bite Law Group has found that unrepresented victims may receive offers representing only a fraction of the damages ultimately associated with their injuries. A complete claim should evaluate both current losses and reasonably anticipated future consequences.
What Compensation Can I Seek After a Fontana Dog Bite?
Compensation can potentially include medical expenses, lost income, pain and suffering, scarring, psychological harm, and other losses caused by the attack.
Every case is different, but damages may include:
- Emergency room and urgent care treatment
- Hospital and physician expenses
- Medication and infection treatment
- Orthopedic care and physical therapy
- Nerve damage treatment
- Plastic or reconstructive surgery
- Permanent scarring or disfigurement
- Lost wages and reduced earning ability
- Pain and physical limitations
- Anxiety, fear, PTSD, and other psychological trauma
Scarring claims require particular care because the final appearance of a wound may not be known immediately. Facial scars and other visible injuries can also have psychological and social consequences that extend far beyond the initial medical treatment.
Dog Bite Law Group has obtained dog bite and animal attack results ranging from tens of thousands of dollars into the millions, including a reported $1.3 million result involving facial scarring and psychological damages. Prior results do not guarantee a similar outcome in another case.
How Long Do I Have to File a Dog Bite Claim in California?
California generally gives an injured person two years from the date of an injury to file a personal injury lawsuit, although exceptions can change the applicable deadline.
The statute of limitations should not be treated as a reason to wait. Evidence can disappear much sooner. Surveillance footage may be erased, witnesses can become difficult to locate, and physical conditions at the scene can change.
Early investigation can be particularly important when a dog was off-leash because determining where the dog came from, how it escaped, who controlled it, and whether witnesses saw it roaming may strengthen the factual record.
Why Can an Off-Leash Fontana Dog Bite Require a Detailed Investigation?
An off-leash case may require evidence showing where the dog came from, who owned or controlled it, what happened immediately before the bite, and what insurance coverage applies.
Dog Bite Law Group focuses exclusively on dog bite and animal attack cases. When appropriate, the firm can move quickly to obtain animal-control and police records, document the scene, locate witnesses, photograph injuries, investigate the dog’s history, and identify potential insurance coverage.
That specialized approach can also help ensure the claim considers the complete effect of the attack, including future scar treatment, plastic surgery, nerve damage, lost income, and psychological trauma rather than focusing only on the initial medical bill.
If you suffered a dog bite injury in Fontana, you can speak directly with attorney John Michael Montevideo about what happened and the evidence that may matter in your case. Dog Bite Law Group represents victims throughout California, including from its Southern California offices, and there is no attorney fee unless the firm obtains a recovery for you.
This article is intended for general informational purposes only and does not constitute legal advice. No attorney-client relationship is formed by reading this content. For advice specific to your situation, please consult a licensed attorney in California