Any good breeder shoulld be able to show you both the sire and the dams pedigrees along with any hunt test that they have done and how well they did. The next step for you should be to speak with other people that have gotten pups from this breeder. Then go hunt behind the sire and the dam if possible. If should be possible to hunt behind at least the dam. Only reason not to would be if she has just whelped or is close to whelping.