Hi 118,
If you suspect theres a puppy farm near you or know someone who does. I suggest making a visit there (not alone) posing as a buyer and see what you find. If they have more than 4-5 bitches there, they really need a licence and its the local counil that would licence them, so you would contact them to see if they do actually have a licence, if they dont theyre breaking the law.
If they do have a licence but the conditions are poor, then you complain to the local council and the RSPCA.
If you want any advive, pm me.
You may also like to take a look at:
Puppy Love-Home