This paper investigates the introduction of location-based services by government as part of an all-hazards approach to modern emergency management solutions. Its main contribution is in exploring the determinants of an individual’s acceptance or rejection of location services. The authors put forward a conceptual model to better predict why an individual would accept or reject such services, especially with respect to emergencies. While it may be posited by government agencies that individuals would unanimously wish to accept life-saving and life-sustaining location services for their well-being, this view remains untested. The theorised determinants include: visibility of the service solution, perceived service quality features, risks as perceived by using the service, trust in the service and service provider, and perceived privacy concerns. The main concern here is to predict human behaviour, i.e. acceptance or rejection. Given that location-based services are fundamentally a set of electronic services, this paper employs the Technology Acceptance Model (TAM) as a special adaptation of the Theory of Reasoned Action (TRA) to serve as the theoretical foundation of its conceptualisation. This technology-specific adaptation within the nomological structure of TRA allows this research to put forward the variables of TAM, the attitude towards using the service and intention to use, as the main predictors of acceptance or rejection. It also enables this research to theorise the internal beliefs of TAM, that is, perceived usefulness and perceived ease of use amongst the determinants of acceptance or rejection. A series of propositions are drawn upon the mutual relationships between the determinants and a conceptual model is constructed using the determinants and guided by the propositions. It is argued the conceptual model presented would yield to the field of location-based services research a justifiable theoretical approach competent for exploitation in further empirical research in a variety of contexts (e.g. national security).