The short version Personal injury is a civil law term, not a criminal one. It covers any harm to a person's body or mind caused by someone else's wrongdoing, usually negligence or breach of a statutory duty. The claim is for money (damages), not punishment. The relevant law is largely common law (judge-made) backed up by statutes such as the Occupiers' Liability Acts, the Health and Safety at Work etc. Act 1974 and the Limitation Act 1980 (with Scottish and Northern Irish equivalents).
What counts as an "injury" - Physical harm: fractures, burns, cuts, back injuries, hearing loss, industrial diseases (asbestosis, vibration white finger, dermatitis), repetitive strain and so on. Severity matters for the value of the claim, not for whether it qualifies.
- Psychological harm: this has to be a recognised psychiatric condition diagnosed by a suitably qualified expert, such as PTSD, clinical depression, an anxiety disorder or an adjustment disorder. Ordinary upset, stress or grief on its own is not enough. Where there is no physical injury at all, the courts apply stricter rules (the "primary" and "secondary victim" tests), so a bystander who witnesses an accident has a much tougher route than the person who was hurt.
- Fatal injuries: dependants and the estate can claim under the Fatal Accidents Act 1976 and Law Reform (Miscellaneous Provisions) Act 1934 in England and Wales. Scotland uses the Damages (Scotland) Act 2011.
Negligence: the four things a claimant must prove - Duty of care: the defendant owed one. Employers owe it to staff, drivers to other road users, occupiers to visitors, businesses to customers.
- Breach: they fell below the standard of a reasonable person (or reasonable employer, professional, etc.) in that position.
- Causation: the breach actually caused the injury, on the balance of probabilities (more likely than not). This is the civil standard, lower than "beyond reasonable doubt".
- Damage: a real, measurable loss resulted.
Some claims rest on breach of a specific regulation rather than general negligence, for example manual handling or work equipment rules, although since 2013 breach of most health and safety regulations in Great Britain is no longer automatically actionable on its own. It still provides strong evidence of what a reasonable employer should have done.
Liability: who pays - Employers are liable for their own failings and vicariously liable for employees acting in the course of their work. Employers' liability insurance is compulsory under the 1969 Act, minimum cover of £5 million, and trading without it attracts a fine of up to £2,500 per day. This applies whether you are a sole trader with one part-timer or a Ltd company with fifty staff.
- Occupiers of premises (owners or tenants, including a shop or office) owe a duty to lawful visitors and, in limited circumstances, to trespassers.
- [ Road users are covered by compulsory motor insurance, and the Motor Insurers' Bureau steps in where the driver is uninsured or untraced.
- Contributory negligence: if the injured person was partly to blame (not wearing a seatbelt, ignoring a clear warning), damages are reduced by a percentage rather than wiped out.
Compensation Damages fall into two pots.
General damages cover pain, suffering and loss of amenity, valued using the Judicial College Guidelines and previous cases.
Special damages cover financial losses: lost earnings, treatment costs, travel, care provided by family, adapted equipment and future losses. Low-value road traffic claims (whiplash under £5,000) now go through the Official Injury Claim portal with fixed tariffs.
Time limits - England, Wales, Scotland and Northern Ireland: three years from the date of injury, or from the date the claimant first knew (or should have known) the injury was linked to the defendant's conduct. That "date of knowledge" rule matters for industrial disease.
- Children: the clock starts at 18 (16 in Scotland).
- People lacking mental capacity: the clock does not run while capacity is absent.
- Fatal claims: three years from death or the dependant's date of knowledge.
Courts have discretion to extend, but it is granted sparingly. Miss the deadline and the claim is almost certainly gone, so get advice early.