The bachelor thesis is about the implementation of a Data Analysis Tool for the City.Risks Project funded by the Horizon 2020 (H2020) European Research and Innovation program. The aim is to develop an interface that is easy to interact with but in the same time provides all the necessary tools to conveniently gain knowledge out of a large dataset. This is achieved by using a search engine for the implementation and various user-centered design methods to design a ser-friendly graphical user-interface that provides visualizations of the dataset as well as the possibility to search through the dataset by keywords. The underlying functionality is achieved by implementing a search engine with Lucene and Elasticsearch. The design of the user interface is realized by iteratively applying user-centered design methods like heuristic evaluation, action analysis and think-aloud.