The Swedish system for civil protection and preparedness has undergone fundamental shifts in legislation, organisation, and responsibility since the 1990s. Most prominently, the responsibility for municipals has increased and the system has become more dependent on actors in the local community. Individuals have also become integral actors in the system with increased responsibility. The guiding principles for this system, formulated by the national authorities, are responsibility, similarity, and proximity. These principles prescribe that disruptions in any regular operations shall be handled by the structure already in place. This means that disturbances or crises, for instance within the local healthcare, should be solved by the regular personnel. The combination of the new location of responsibility and the guiding principles locate the issues of safety and security at the interface between the single individual and the organisation. The aim of this dissertation is to gain knowledge about the relationship between people with disability and the municipal administrative function for civil protection and preparedness regarding safety and security. Four empirical investigations from Sweden are included. The first is a quantitative study investigating the risk perception among disabled people and whether this perception can be explained by their disability. The three remaining studies are qualitative, studying respectively: how risk and vulnerability are manifested, experienced, and managed in everyday life by disabled persons; how local authorities arrange civil protection and preparedness at the local level, and how an uncertain, adverse event was managed at different levels of the local health care. The two studies with disabled persons shows that trust is central to understand how risk perception is shaped and that the safety in everyday life is important. Individuals develop certain strategies in order to deal with vulnerability. The strategies include avoiding certain situations; to show or not to show their needs, and being accustomed to everything taking a long time. These strategies form a framework for interpretation of safety and security where the body is objectified as a social representation. The body thus is comparable to any other social representation and can be subject for defence, mitigation or damage reduction. The first study of local administrations shows that the local civil protection and preparedness is arranged in the same manner all over the country. However, the administrative function for safety and security must deal with distinctly different characteristics in organisational relationships. The relationship with the local administration in general is labyrinthine because of rationality problems regarding adaptation, aims and objectives, assessment and evaluation, and with the allocation of responsibility. The relationship with the different departments within the authority suffers from problems with hierarchy in that the function lacks an authoritative centre, legitimacy, and executive power. The relationship with external entities exhibits problems with organisational identity due to a lack of resources, a distinct organisational character, and autonomy. The second study of local administrations shows that the temporal-spatial framing of a disturbance in the local fresh water system differed between the different organisational levels. Primarily the human agency in terms of trust and a pre-established sphere for action of the personnel was decisive in managing the disturbance. Theories of trust are used to conduct the analysis of the four studies. While the former system for civil protection and preparedness was characterized by an instrumental trust signified by vertical power and expectations of solving concrete problems the present system is more dependent on a so called humanitarian trust signified by horizontal division of power and expectations of managing vulnerability. The conclusion is that at the local level authenticity, legitimacy, and transparency can reduce the three forms of vulnerability: dependency, unpredictability, and irreversibility respectively. This type of trust fits better with the individual-organisation interface in which much of the responsibility for safety and security is allocated today