Sascha Dickel and Andreas Wenninger will take part in the spring conference of the Leopoldina Center for Science Research in Halle (Saale) on April 11th, 2019, which this year will focus on the topic “Science in a Reliability Trap? Practices of the Construction of Relevance and Neutrality?”.  Their contribution is titled, “Beyond Professional Authority?  The Social Construction of Reliable and Credible Citizen Science”.