Tiergarten is a district of Berlin and the location of German army intelligence headquarters. In the account of Georges Picquart’s investigation, it is not described through streets or landmarks; its significance comes from the intelligence activity and testimony associated with it.

Intelligence Headquarters

Picquart identifies Tiergarten as the district where German army intelligence is based. The location also anchors the history of Richard Cuers, an agent who had worked for German intelligence in Paris before the French side turned him. Jean Sandherr briefed Picquart about Cuers when Picquart took over, making the agent part of the case’s inherited intelligence network.

Cuers’s Report

Colonel Foucault tells Picquart that Cuers has been dismissed. In a later account relayed through Cuers, German authorities investigate whether Alfred Dreyfus had ever served as a spy. Maximilian von Schwartzkoppen is recalled to Berlin for consultation; Cuers says he personally saw him in Tiergarten. Schwartzkoppen reportedly maintained that he had first heard Dreyfus’s name in a newspaper after the arrest. Cuers also reports that inquiries to other friendly European intelligence agencies produced no indication that they had employed Dreyfus.

Evidentiary Significance

Tiergarten gives the report a concrete point of observation: Cuers’s claim that he saw Schwartzkoppen there supports the account of his recall, while the wider inquiries challenge the allegation that Dreyfus had worked for a foreign service. The evidence reaches Picquart through a chain of reports rather than through a scene of direct investigation in Berlin. The district therefore functions both as the headquarters site and as a named location in testimony whose implications bear on the accusation against Dreyfus.