Last 17th of December, 2014 a meeting was celebrated in the Madrid City Council premises between HI-Iberia and the Madrid City Council Police Department. During the meeting, the end users validated the Use Cases defined and ensured that the situations that SAMi2 is going to face are under their scope and domain of interests. Also, a lot of information about how the Police Department works and proceeds when they have to look for key information through the social network was collected. As main outputs, a new use case centered on terrorism will be defined in order to accomplish the Police interests, and a set of requirements that will be taken into account during the development of the SAMi2 platform. In consequence, the result will be a tool that fits the needs of the Madrid City Council and also of other European Security Organisms.