This 2011 video from the USA says about itself:
Puppy mills are large breeding facilities where dogs live in deplorable conditions, often without necessary food, water, or veterinary care. This is a look inside.
Another video, from Britain, used to say about itself:
13 November 2014
Puppy Smuggling Surge Raises Rabies Fears
Corrupt vets are creating false pet passports and faking vaccination records to get puppies into the UK, an investigation reveals.
A dramatic increase in the number of puppies crossing the border from eastern Europe into the UK is fuelling fears that rabies could return to Britain, a charity has warned.
Dogs Trust has uncovered a “high level of corruption” and “shocking” animal welfare following its investigation into the trade of puppies from Hungary and Lithuania.
Undercover footage shows vets creating false pet passports and rabies vaccination records.
The charity said its findings show that the Pet Travel Scheme, which allows pet dogs, cats and ferrets to enter Britain without quarantine, was being abused by criminal breeders, vets and transporters.
It revealed how under-age puppies slipped through the net undeclared due to a lack of checks at ferry ports and borders, enabling breeders to make up to £100,000 a year.
It also found that some puppies are forced to make journeys of more than 1,000 miles in appalling conditions without suitable treatments or vaccinations, increasing the risk of spreading diseases such as rabies in the UK.
Paula Boyden, Dogs Trust veterinary director, said: “While ‘a dog is for life, not just for Christmas’ remains our famous slogan, a puppy remains on the top of many wish lists.
“Unsuspecting British shoppers will continue to buy puppies online which may have been brought into the country illegally, meaning the risk of unknowingly bringing a puppy from eastern Europe with diseases and behavioural problems into the home is very real.
From daily The Morning Star in Britain:
Dogs Trust uncovers cruel puppy smuggling
Friday 14th November 2014
A CHARITY has uncovered what it describes as a “high level of corruption” and “shocking” animal welfare breaches following an investigation into the trade of puppies from eastern Europe to Britain.
The Dogs Trust released footage yesterday which it says shows criminal breeders, vets and transporters in Hungary and Lithuania abusing the Pet Travel Scheme, which allows pet dogs, cats and ferrets to enter Britain without quarantine.
European vets were caught on camera creating false pet passports and rabies vaccination records.
The charity said that underage puppies slipped through the net undeclared due to a lack of checks at ferry ports and borders.
It also found that some puppies are forced to make journeys of more than 1,000 miles in appalling conditions.
More about this is here.