Lucy's Law is the single most important piece of consumer law for anyone buying a puppy or kitten in Great Britain — and one of the most misunderstood. Here is what it actually says, why it exists, and how to use it to protect yourself.
Who was Lucy?
Lucy was a Cavalier King Charles Spaniel rescued in 2013 from a Welsh puppy farm, where she had spent years confined as a breeding bitch. Her condition — fused hips, a curved spine from cramped caging, epilepsy — made her the public face of a campaign against the commercial third-party puppy trade, led by vet Marc Abraham and supported by a 150,000-signature petition. Lucy died in 2016; the law named after her followed.
What the law actually says
In England, Lucy's Law is not a standalone act. It is an amendment — made in 2019 and in force from 6 April 2020 — to the Animal Welfare (Licensing of Activities Involving Animals) (England) Regulations 2018. Scotland and Wales introduced equivalent bans in September 2021.
The effect is simple:
- Puppies and kittens under six months old may only be sold by the breeder — the person who actually bred them — and the sale must happen at the premises where the animal was born, with the puppy or kitten shown alongside its mother.
- Commercial third-party sales are banned. Pet shops, dealers, brokers and "agents" can no longer sell puppies or kittens they did not breed.
- Legitimate rescues and rehoming organisations are exempt — they can continue to rehome young animals. If rehoming appeals to you, see our guide to adopting vs buying.
So a buyer in Great Britain now has exactly two legitimate routes to a puppy or kitten under six months: direct from the breeder, or from a genuine rescue.
Why it matters: how third-party sales enabled puppy farming
Before the ban, puppy farms rarely sold to the public directly. Dealers collected litters from high-volume, low-welfare breeding operations — often hundreds of miles away or overseas — and retailed them from ordinary-looking houses, vans and pet shops. That middle layer did two harmful things:
- It hid the breeding conditions. Buyers never saw the farm, the mother, or the state the puppies were bred in.
- It removed accountability. When puppies fell sick or died, the "seller" had no connection to the breeder and often no traceable identity.
By forcing every sale back to the place of birth, with mum visibly present, Lucy's Law makes the supply chain inspectable by every single buyer. You become the inspector.
What buyers must check
Lucy's Law only works if buyers insist on it. Before paying for any puppy or kitten:
- Visit the place the animal was born. Not a car park, not a "handover point", not your own doorstep via courier. Sellers offering delivery of a young puppy or kitten are advertising that they are breaking the law.
- See the mother with the litter — interacting naturally, not a stand-in adult produced for the visit.
- Ask who bred the animal. The answer must be the person selling it. "I'm selling it for my cousin" is a third-party sale.
- Check licensing. In England, anyone breeding three or more litters a year, or breeding as a business, needs a council licence and must display the licence number and issuing council on adverts. Verify it with the council.
- Get the paperwork — microchip registration (see our microchipping rules guide), first vaccination, and a receipt naming the seller and address.
Our step-by-step guide to buying a puppy safely covers the full visit checklist.
Penalties for breaking the law
Selling puppies or kittens without the required licence, or in breach of licence conditions, is a criminal offence. Offenders face unlimited fines and up to six months' imprisonment in England, and courts can disqualify offenders from keeping animals. Councils can refuse, vary or revoke breeding licences, and the Animal Welfare Act 2006 provides further offences — with sentences of up to five years for the most serious cruelty — where poor conditions amount to suffering.
Enforcement is led by local authority licensing teams, which is why reporting matters: councils act on intelligence from the public.
What Lucy's Law does not do
Honesty helps buyers more than reassurance, so it is worth being clear about the gaps:
- It does not apply to animals over six months old, which is why dealers sometimes advertise "older puppies".
- It does not by itself stop illegal imports — smuggled puppies are still sold with faked "family home" backstories. The checks above are your defence.
- It regulates sellers, not buyers: you commit no offence by buying from an illegal seller, but you fund the trade and inherit the health problems.
The bottom line
If you remember one sentence, make it this: see the puppy or kitten with its mum, where it was born, sold by the person who bred it — or walk away and report the advert. Every listing on PetHome carries a report button, and our pet safety hub explains the other warning signs to watch for before you browse dogs for sale or pets for adoption.