The above final paper presents the history of the development of fire extinguishing systems and equipment indoors and outdoors, ie the area with information and communication equipment. In the introductory part there is a theoretical part about what is fire, division of fire, fire phases, classification of fire. Furthermore, the evolution of the Fire Protection System from the first documented organized firefighting, the appearance of the first water pump, the first fire hoses, the protective equipment used and the appearance of the first fire alarm system is presented, as it has developed throughout history. In the further part of the paper, the development of information and communication equipment is presented, and the development of telephony, fire alarm devices, power supply devices and the ways in which they function in the event of fires and explosions are included. The experimental part presents the problems that occur in the building of Police Station A and the building of Police Station B during the fire. It is further explained which system is used and how the fire protection system works in these buildings located in Karlovac County, during which a detailed analysis of the fire alarm used in the building of Police Station A and the building of Police Station B, which were built in the range of 20 years. The efficiency of the used system was also assessed, during which it was determined that in building B the risk of fire and explosion was reduced to the smallest possible by technical solutions, while in building A it was determined that it was also performed in accordance with all regulations, at the time of construction, but with regard to technological progress, the Fire Protection system should be improved using a modern automatic system, during which suggestions for improvement were given.