Stanford Journal of International Law
Since the Dreyfus trial in 1899, governments have sent observers to foreign political trials both to increase their understanding of the affairs of other nations and to express concern about the fairness of the proceedings themselves. It is now common for a number of gov- ernments, including those of Canada, the Federal Republic of Ger- many, Japan, Sweden, the United Kingdom, and the United States, to send official observers to foreign trials of political or human rights significance.
David Weissbrodt, International Trial Observers, 18 Stan. J. Int'l L. 27 (1982), available at https://scholarship.law.umn.edu/faculty_articles/233.