Aim of the study: The paper presents the principles which govern evaluation of poaching crimes with the use of firearms during preparation of court opinions based on secured forensic traces. In many cases, secured evidence does not allow for post-mortem examination; it becomes necessary to use other methods of assessing the evidence. Material and methods: Such assessments are based on photographic documentation of the scene, as well as secured fragments of tissue, and sometimes also bullets or their parts. In many cases, the secured evidence allows for the use of simple research methods or experiments that make it possible to determine the facts. Results: Such comprehensive analyses lead to precise determination of both the species of animals and the cause of their death and should be used in forensic and veterinary opinions.