 Guy von Dardel, Mesinai became an ad hoc consultant to the official Swedish-Russian Working Group on Raoul Wallenberg’s Fate and instigated an archival research project to seek traces of Wallenberg in psychiatric facilities in Western Russia.As the majority of the earlier records had been removed to the East, she reverted to her comprehensive study of eyewitness reports, focusing also on other Swedes in the Gulag who could be mistaken for Wallenberg.In 1997, after assisting "U.S. News & World Report" with the reporting for a feature article, “The Angel Was A Spy,” Mesinai was employed by the Government of Sweden to do a full-time study of selected cellmates, indirect eyewitnesses and analogous cases, which might offer a paper trail that could lead back to Wallenberg.