Moreover, the HACCP system should be verified during implementation, using measurable parameters such as microbiological data. A proper verification procedure should be based on evaluating the microbiological results within the same plant during different periods of time and comparing them with the standards set by legislation. The object of verification is to confirm that the system is working properly and the hazards are effectively kept under control. Microbiological examination, on the other hand, is applied to random samples and does not cover the total surface of the carcass. Therefore, it cannot eliminate the possibility of pathogens' presence. This is the reason for the use of indicator microorganisms, to show the general hygiene and contamination of faecal origin (Brown et al., 2000 and Buncic, 2006).