The first chapter of this thesis contains a summary of information, definition, methods, procedures, effects, legislative features and the possibilities of using negative advertising in political election campaigns, including a description of its historical development in the Czech Republic and the United States of America. The second chapter contains a hypothesis for a survey of public opinion, including its evaluation and analysis of the negative elements of the election to the Parliament of the Czech Republic between 2006 and 2010, focusing on monitoring of the development use of negative advertising
