The threats which we associate with nuclear-radiological, chemical and biological elements aren't only used as weapons or battle agents in modern times, but also in other non-military forms. Mostly in ways that we don't directly associate with threats. Non-military use of these elements is however getting closer and closer to the general public and everyday civilians, who could be under threat because of this. Nuclear plants, radiological elements, the chemical industry and infectious diseases are potential threats against which we have no appropriate plan of defence and rescue, knowledge or equipment. Without cooperation we won't be able to successfully protect the population. With this research paper I attempted to connect these dangers with planning for defences and rescue against such attacks in Slovenia and present this subject in a wider scope. Its purpose is, to present these "hypothetical dangers" with which Slovenia could be confronted, to present our mechanisms of defence and rescue along with the people and units that make them work. Nuclear-radiological, chemical and biological dangers are a problem which would require all available resources, because we are fighting against something, which we cannot see or hear and by the time we can detect it, it's probably too late. Preventive action in this field is the key to success. Slovenia currently has enough defence against current trends of threats, however much more must be done for us to be able to defend ourselves against larger threats. We must keep in mind that, we will never be able to rescue and protect everyone from nuclear-radiological, chemical and biological threats.