A formal legal complaint has been filed against the way Roma resident in the German Land of Bavaria have files compiled on them as „Gypsies". Roma campaigners, including two Holocaust survivors, maintain that to classify some German citizens differently from others on the grounds of ethnic background is unconstitutional and also violates international anti-racism agreements. This practice, described as a hangover from Nazi classifications, is found only in Bavaria, where it is held to aid police work. Roma activists reject the Bavarian government's claims and have asked for a legal decision on the practice.