A bite or serious incident can be frightening for everyone involved. What happens next depends on exactly what occurred, where it occurred, whether anyone was injured, the evidence available, the dog's history and the law applying in that part of the UK. Acting calmly, responsibly and promptly gives you the best opportunity to protect everyone involved — including your dog.

This section is general guidance, not personalised legal advice. Dog law can change and differs between England, Wales, Scotland and Northern Ireland. For any specific incident, seek specialist legal advice.

Immediate PrioritiesView source for this information

The person responsible for the dog should:

1. Bring the dog under safe control without creating further danger.
2. Separate the dog from people and animals using a secure lead, barrier, vehicle, room or appropriately conditioned muzzle where safe.
3. Call 999 if someone is in immediate danger or has a serious injury.
4. Encourage appropriate medical attention for a human injury. The NHS provides guidance on animal and human bites.
5. Arrange veterinary attention for an injured animal.
6. Exchange accurate names and contact information with the relevant people where safe and appropriate.
7. Report the incident to the appropriate authority where required or appropriate.
8. Avoid arguments, threats, blame or social-media discussion.
9. Do not conceal the dog, provide false information, delete evidence or obstruct a lawful investigation.
10. Prevent another incident while advice and assessment are obtained.

For human bite injuries, the NHS provides guidance on when and how to seek medical help. This section does not provide detailed human first-aid instructions.

Record the Facts

Make a private factual record as soon as possible:

- Date and time
- Exact location
- Who was present
- Contact details of witnesses
- What happened immediately before the incident
- Where the dog and people or animals were positioned
- Whether leads, gates, fences or muzzles were involved
- Photographs of the location where lawful and appropriate
- Photographs of relevant damage or injuries where consent and privacy permit
- CCTV, doorbell, vehicle or telephone footage that may exist
- Police or council reference numbers
- Medical and veterinary documents
- Previous relevant training, veterinary or behaviour records

Preserve original files. Do not edit video, photographs or messages. Do not coach witnesses. Keep factual notes separate from guesses or interpretations. Do not publish evidence publicly. Respect personal privacy.

Contact the Correct Authority

- Call 999 for an immediate emergency.
- Non-emergency incidents involving injury or fear of injury to a person may be reported to the police using 101 or the appropriate police reporting service.
- Dog-on-dog incidents may involve the police, local authority dog service or civil proceedings depending on the circumstances and local arrangements.
- Serious incidents involving livestock should be reported promptly to the police and relevant landowner.
- Reporting routes differ between local-authority areas and UK nations.
- Obtain and retain any incident or reference number.

Not every dog-on-dog incident is automatically a criminal offence. The appropriate response depends on the specific circumstances and local arrangements.

What "Dangerously Out of Control" Can MeanView source for this information

For England and Wales, current official guidance explains:

- The law applies to all dogs, not only prohibited types.
- A dog can be considered dangerously out of control if it injures someone.
- A dog can also be considered dangerously out of control if a person reasonably fears that it may injure them.
- The law can apply in public and private places, including the owner's home.
- A court may also consider circumstances involving an attack on another animal or where the animal's owner fears injury while intervening.
- A bite is not required in every dangerously-out-of-control allegation.
- The exact offence, available orders and potential consequences depend on the evidence and jurisdiction.

Potential penalties and court orders depend on the offence, outcome and jurisdiction. Check current official guidance and obtain specialist legal advice about an individual case.

Dog-on-Dog Incidents

Incidents involving another dog can have several possible dimensions:

- Animal welfare and urgent veterinary treatment
- Local-authority or police investigation
- Possible dangerous-dog proceedings depending on circumstances
- Possible civil liability and recovery of veterinary or related losses
- Insurance notification
- Behaviour and veterinary assessment
- Future management

The owner of one dog is not automatically legally liable merely because their dog caused injury. Do not make assumptions based only on which dog bit first, which dog was larger or which dog was off lead.

Seek Specialist Legal Advice EarlyView source for this information

Dog law is specialist law. If your dog is accused of injuring someone, causing fear of injury, attacking another animal, being dangerously out of control or being a prohibited type, seek advice from a solicitor experienced in dog-law cases as early as possible.

Cooper & Co Solicitors specialises in civil and criminal dog-law cases in England and Wales. Its principal is Trevor E Cooper. Cooper & Co states that it is authorised and regulated by the Solicitors Regulation Authority (SRA number 258139).

People in Scotland or Northern Ireland should seek a solicitor with relevant experience in their jurisdiction. Listing a specialist resource is not a guarantee of outcome and LUOSKO is not providing legal representation.

Police, Council or Court InvolvementView source for this information

- Do not obstruct an officer acting lawfully.
- Ask which organisation is dealing with the matter.
- Record the officer's name, force or service and incident number where possible.
- Keep copies of notices and documents.
- Read documents carefully.
- Seek specialist legal advice promptly.
- If invited to a formal interview, ask whether it is an interview under caution and obtain legal advice.
- Comply with any lawful interim conditions or court order.
- Do not assume seizure means the dog will automatically be destroyed.
- Do not breach a notice or order because you disagree with it; obtain legal advice about challenging it properly.

Police powers, interviews under caution, seizure and court procedures are legally complex. Obtain advice from a solicitor experienced in dog-law cases as early as possible.

Standing By Your Dog Responsibly

Standing by a dog means acting responsibly and lawfully:

- Prevent any repeat incident
- Use secure management immediately
- Follow lawful instructions
- Obtain veterinary assessment, particularly where behaviour changed suddenly
- Obtain an appropriately qualified behaviour assessment where indicated
- Use lead, barriers, secure fencing and positive muzzle conditioning where appropriate
- Maintain accurate records
- Cooperate through the correct legal process
- Obtain specialist advice
- Be honest about risk
- Prioritise public safety and the dog's welfare together

Standing by your dog does not mean denying what happened or minimising risk. It means ensuring the facts are properly understood, obtaining appropriate advice, complying with the law and putting effective safeguards in place.

Documents and Records to Keep Current

- Microchip registration and current keeper details
- Collar-tag details
- Veterinary record
- Vaccination and titre-test certificates
- Medication list
- Insurance policy and policy number
- Third-party liability cover where held
- Training and behaviour records
- Adoption or ownership documentation
- Photographs identifying the dog
- Muzzle and secure-handling plan where relevant

Possessing these records does not provide a defence to an allegation by itself. Vaccination status does not determine whether a dog was dangerously out of control, but accurate records may be relevant to health, boarding, welfare, travel and incident management.

Insurance After an Incident

- Notify the relevant insurer promptly where the policy requires it.
- Follow the policy's notification procedure.
- Do not assume ordinary veterinary insurance includes third-party liability.
- Some membership schemes or specialist policies may provide liability cover.
- Check exclusions, excesses, legal-expense provisions and notification deadlines.
- Do not make dishonest or incomplete statements.
- Do not promise payment or settlement on behalf of an insurer without advice.
- Keep copies of all correspondence.

This section does not recommend a particular insurance product.

Understanding the Dunbar Dog Bite ScaleView source for this information

The Dunbar Dog Bite Scale was developed by veterinarian and behaviourist Dr Ian Dunbar. It gives a structured way to describe the severity of a dog bite by looking at objectively observable wound consequences — whether teeth made contact, whether the skin was punctured, the depth and number of punctures, and whether the dog held on or shook — rather than relying only on emotionally charged words such as "attack" or "savage".

The scale progresses through six levels, broadly moving from threatening or out-of-control behaviour without tooth contact, through contact without puncture, then puncturing and increasingly serious injuries, up to a fatal incident. The six levels are commonly referenced as Level 1, Level 2, Level 3, Level 4, Level 5 and Level 6, moving from least to most severe. The complete authorised scale, including its measurements and level descriptions, is published by Dr Dunbar and should be read directly from his official version for full detail.

Important limitations — The Dunbar Dog Bite Scale describes the physical severity of a human-directed bite incident. It is not designed to classify injuries one dog inflicts on another, is not an official UK legal classification, does not determine whether an offence has occurred, and cannot by itself explain why the dog bit or predict everything the dog may do in future.

A lower-level incident must not be ignored merely because the skin was not punctured. It can still indicate fear, pain, guarding, conflict, poor management or escalating risk. A higher-level injury requires urgent safety management and appropriately qualified professional assessment.

Owners must not use the scale to minimise an incident, challenge an injured person's account, or delay reporting, medical care, veterinary assessment, insurer notification or legal advice. Human wounds should be assessed according to current NHS guidance, particularly where skin is broken, the injury is deep, infection risk exists, or the injured person is vulnerable. The dog should receive veterinary assessment where pain, illness or sudden behavioural change may have contributed.

Behavioural assessment must consider context, antecedents, warning behaviour, bite inhibition, the number and pattern of bites, the dog's ability to disengage, previous incidents, victim vulnerability, environment and current management. Formal legal advice must come from an appropriately qualified dog-law solicitor.

Do not label a dog permanently as a "Level X dog." A recorded incident may be described as consistent with a particular level only when assessed by a competent professional using the official scale.

The Dunbar Dog Bite Scale must not be applied directly to injuries one dog inflicts on another; it was designed for human-directed bites. Dr Dunbar has separately written about assessing dog fights and bite inhibition, but that separate framework is not reproduced or introduced here.

Related guidance: Immediate priorities, Record the facts, Seek specialist legal advice, Teeth, Jaws & Bite Inhibition, and emergency and first-aid guidance.

Dog-on-Dog Incidents: The Fight:Bite RatioView source for this information

The Dunbar Dog Bite Scale is intended for wounds inflicted on people and must not be applied to injuries one dog inflicts on another. Dr Ian Dunbar PhD, BVetMed, MRCVS has described a separate concept, the Fight:Bite Ratio (often written Fight Bite Ratio), for considering dog-on-dog incidents.

The framework considers the number of full-contact fights in a dog's known history alongside the number that resulted in another dog being taken for veterinary treatment because of bite injuries. A history containing conflict without corresponding injury can provide information about the dog's ability to inhibit its bite. Repeated incidents causing significant injury indicate a very different and more serious risk picture. This is contextual information, not a standalone diagnosis, legal category or guaranteed prediction.

Where the history is incomplete, or where there have been no injury-producing bites, do not calculate or display a numerical result. Use the concept qualitatively, and only to help understand incidents that have already happened.

If my dog attacked another dog, my dog bit another dog, or another dog bit my dog, the same careful approach applies. Bite inhibition between dogs is different from bite inhibition towards people. A dog fight with no injury still warrants assessment, and any dog fight requiring a vet should be treated as significant.

Important safety limitations — Never allow another fight to "test" bite inhibition. The framework may help professionals understand incidents that have already happened. It must never be used to expose dogs to conflict, permit another encounter or gather more evidence.

The absence of visible injury does not mean an incident was harmless. Thick coats can conceal punctures and crushing injuries. Small punctures may close rapidly while deeper tissue damage remains. Size differences can make an inhibited bite dangerous to a much smaller, older or medically vulnerable dog. Veterinary attendance is influenced by whether the injury was noticed, owner judgement, access and cost, so treatment history is useful but imperfect evidence. A dog that has not previously caused injury is not guaranteed never to do so. A single serious incident requires attention even when there is no history of previous fights.

What a professional assessment should consider:

- Number and sequence of incidents.
- Whether contact involved one bite or repeated bites.
- Whether the dog released or disengaged.
- Grabbing, holding, shaking or repeated re-engagement.
- Injuries to both dogs, including veterinary findings.
- Difference in size, age and physical vulnerability.
- Whether one dog attempted to retreat.
- Resource, barrier, lead, pain, fear, territorial or predatory context.
- Recovery after separation.
- Previous warning behaviour.
- Whether people were endangered or injured while intervening.
- Current containment and management.

This is not an automated risk score. Context must be interpreted by appropriately qualified professionals.

Immediate actions after a dog-on-dog incident:

- Separate and secure the dogs without placing hands between their mouths. For breaking up a dog fight, prioritise safety — do not grab collars, pull dogs apart by the limbs, strike, choke or place hands near mouths.
- Check both dogs calmly, remembering that fur can conceal wounds.
- Seek veterinary advice, particularly for punctures, crushing, pain, breathing change, weakness, injuries around the chest, abdomen, neck, eyes or joints, or any concern about a smaller or vulnerable dog.
- Exchange accurate owner and contact details where appropriate.
- Record the time, location, sequence, witnesses, photographs and veterinary findings.
- Notify the relevant insurer according to policy terms.
- Prevent another encounter while the incident is assessed.
- Arrange veterinary assessment for possible pain or illness contributing to sudden behavioural change.
- Seek an appropriately qualified clinical behaviourist for behavioural risk assessment.
- Obtain specialist dog-law advice when injury, reporting, police or council involvement, disputed responsibility or potential proceedings are involved.

Legal distinction: the Fight:Bite Ratio is not part of UK legislation. It does not decide legal responsibility. A dog-on-dog incident can still have legal, civil, insurance and public-safety consequences. If a person is injured or reasonably fears injury, additional legal considerations may arise. Legal interpretation belongs with a suitably qualified UK dog-law solicitor.

Terminology: avoid automatically describing every noisy disagreement as a "fight" or every injury as proof of an intention to kill, and avoid minimising serious contact as "just dogs sorting it out." Use neutral language — incident, conflict, full-contact fight, bite injury, veterinary-treated injury, known history, ability to disengage and bite inhibition.

Related guidance: Dunbar Dog Bite Scale (human-directed), Dog-on-dog incidents, Record the facts, Seek specialist legal advice, emergency veterinary guidance, and finding qualified professional help.