The rules related to the conduct of emergency and medical services during the occurrence of a mass event are described in the Act on State Emergency Medical Services of 8 September 2006 and the notice issued by the Ministry of Health. The biggest disaster in Poland was the event of 2006 at the International Katowice Fair located on the border between Katowice and Chorzów. The tragedy covered a hall with an area of about 1 ha, in which there were about 700 people. It is worth noting that the described event was the first test of such scale for the first in Poland Voivodship Center for the Coordination of Medical Rescue. This was also the main reason for work on the shape of the Rescue Act. Contemporary segregation techniques date back to Napoleonic times. In the eighties of the twentieth, the Simple Triage and Rapid Treatment (START) segregation system was developed, which is widely used in the original version or modified in many countries, including Poland. Other systems of segregation include the Triage SIEVE system (popular in Australia and Great Britain), Triage SORT and the STM System. Providing medical help must be based on the principles of rational and logical scale of damage, determination of the number of people injured in an accident, as well as on the basis of ethical standards. Effectiveness of segregation determines the detection of the deterioration of the injured person's condition and allows him to be moved to a higher segregation group to get help faster. The basic assumption of medical segregation, however, is to select persons who are in immediate danger of life from those who are injured.
Keywords: segregation; Poland; catastrophe; rescue.