Although the hunters known as ‘terrier men ‘are known to play a significant role in the illicit and cruel persecution of the badger in Britain, very little information is available upon their activities. In this study, detailed records of the hunting practices of a single terrier man, covering a period of seven years, are analysed This provides the first insight into the activities of illegal badger-digging groups, and also emphasizes the extreme stress that may be caused to quarry species during the practice of this illegal sport.