Global Terrorism Database. While the GTD inclusion criteria offer a comprehensive definition of terrorism, we encourage users to take advantage of the GTD's flexibility to restrict the data according to their definitional preferences. This includes filtering search results based on whether the coder noted some uncertainty whether an incident meets the criteria for inclusion ("Doubt Terrorism Proper," systematically available for post-1997 cases only).
Also, users can filter search results based on which of the following three criteria are met (available for all cases): Criterion 1: The act must be aimed at attaining a political, economic, religious, or social goal. Documentatiecentrum Nederlandse Politieke Partijen (DNPP) Nonpartisan, non-advocacy public opinion polling and demographic research. Nieuws in de klas - De Digitale Krant. Geschiedenis 24. Songteksten.net. My Way of Life.