She has been investigating the Italian Mafia in Germany since 2014 and she has been working on cross-border investigations as a part of international teams. She co-authored the book "Die Mafia in Deutschland. Kronzeugin Maria G. packt aus" about the Italian Mafia in Germany. In 2017 she helped developing the German-Turkish journalistic project "ÖZGÜRÜZ". Her work has featured in Correctiv.org, Stern magazine and theblacksea.eu