Project 4.2 of COST Action TU1208 addresses a challenging and emerging field of application of Ground Penetrating Radar (GPR), namely the localization of people buried or trapped, possibly exploiting the detection of the Doppler frequency changes induced by their physiological movements (i.e., heart-beat, breathing). This paper outlines the main motivations for which the topic is worth to be considered in the framework of the COST Action and provides an overview of some relevant literature. Moreover, a first plan of the Project’s activities is sketched, together with a discussion of which are some of the expected Project’s outcomes