The BZgA is the federal government agency of the Federal Ministry of Health. Its main task is the implementation of nationwide prevention and health promotion campaigns. The BZgA continously carries out representative surveys to in order to base the measures it employes on a solid research base. Moreover, studies serve the evaluation of measures and the assessment of the population's susceptibility to campaigns. The datasets (most of which are available to the research community) of these investigations contain information about knowledge, attitudes and behaviour in the general population concerning HIV/AIDS, alcohol and tobacco use and illegal drug use, gambling and gambling addiction, youth sexuality, organ and tissue donation, contraceptive behaviour, and vaccination behaviour.