In a courtroom there is no system on trial, no History or historical trend, no ism, anti-Semitism for instance, but a person, and if the defendant happens to be a functionary, he stands accused precisely because even a functionary is still a human being, and it is in this capacity that he stands trial.
Hannah Arendt (1906-1975) German-American philosopher, political theorist
Essay (1964-08), “Personal Responsibility Under Dictatorship,” The Listener Magazine
(Source)
On war crimes trials in general, and the Eichmann trial in particular.
Collected in Responsibility and Judgment, Part 1 "Responsibility" (2003).