One of the most brutal ways of abusing animals is dog fighting. In addition to physical abuse, dogs often experience some forms of sexual and emotional abuse. The bite injuries that occur in combat are noticeable over a long period of time and, given the location, are specific and easily lead to suspicion. At the request of one municipal state attorney's office, it was necessary to determine the injuries and the mechanism of their occurrence on the basis of a clinical examination of 29 previously seized dogs and existing documentation. In the filed criminal report, it was suspected that the dogs took part in the fights, ie that a criminal offense had been committed. Injuries found during clinical examination were analyzed separately to determine if they were inflicted during dog fighting. Each location and age of the injuries was determined in order to give an opinion on the mechanism of occurrence based on the current knowledge related to injuries in dog fighting. Of the 29 dogs for three of them, it can be concluded with certainty that these are injuries that occurred during the dog fight. A number of dogs, four of them, have injuries whose location corresponds to injuries that can occur as a result of dog bites, but due to the number of injuries, an association with dog fights can be ruled out. In addition to injuries, diagnoses established during a clinical examination were analyzed. For most of them, a cause-and-effect relationship has been established with inadequate hygiene and health care.