2. One may be liable even though he may not have known who his fellow-conspirators were, or just what part they were to take, or what acts they committed, and though he did not take personal part in them or was absent when criminal acts occurred.
3. There may be liability for acts of fellow-conspirators although the particular acts were not intended or anticipated, if they were done in execution of the common plan.
4. It is not necessary to liability that one be a member of a conspiracy at the same time as other actors, or at the time of criminal acts. When one becomes a party to it, he adopts and ratifies what has gone before and remains responsible until he abandons the conspiracy with notice to his fellow-conspirators.
Of course, members of criminal organizations or conspiracies who personally commit crimes are individually punishable for those crimes exactly as are those who commit the same offenses without organizational backing. But the very gist of the crime of conspiracy or membership in a criminal association is liability for acts one did not personally commit but which his acts facilitated or abetted. The crime is to combine with others and to participate in the unlawful common effort, however innocent the personal acts of the participant when considered by themselves.
The very innocent act of mailing a letter is enough to implicate one in a conspiracy if the purpose of the letter is to advance a criminal plan. There are countless examples of this doctrine in Anglo-American jurisprudence.
The sweep of the law of conspiracy is an important consideration in determining the criteria of guilt for organizations. Certainly the vicarious liability imposed in consequence of voluntary membership, formalized by oath, dedicated to a common organizational purpose and submission to a discipline and chain of command, can not be less than that which follows from informal cooperation with a nebulous group to a common end as is sufficient in conspiracy. This meets the suggestion that the prosecution is required to prove every member, or every part, fraction, or division of the membership to be guilty of criminal acts. The suggestion ignores the conspiratorial nature of the charge. Such an interpretation also would reduce the Charter to an unworkable absurdity. To concentrate in one International Tribunal inquiries requiring such detailed evidence as to each member would set a task not possible of completion within the lives of living men.
It is easy to toss about such a plausible but superficial cliché as, “One should be convicted for his activities, not for his membership.” But this ignores the fact that membership in Nazi bodies was itself an activity. It was not something passed out to a passive citizen like a handbill. Even a nominal membership may aid and abet a movement greatly. Does anyone believe that Hjalmar Schacht sitting in the front row of the Nazi Party Congress of 1935, wearing the insignia of the Party, was included in the Nazi propaganda films merely for artistic effect? This great banker’s mere loan of his name to this shady enterprise gave it a lift and a respectability in the eyes of every hesitating German. There may be instances in which membership did not aid and abet the organizational ends and means, but individual situations of that kind are for appraisal in the later hearings and not by this Tribunal. By and large, the use of organization affiliation is a quick and simple, but at the same time fairly accurate outline of the contours of a conspiracy to do what the organization actually did. It is the only one workable at this stage of the trial. It can work no injustice because before any individual can be punished, he can submit the facts of his own case to further and more detailed judicial scrutiny.
While the Charter does not so provide, we think that on ordinary legal principles the burden of proof to justify a declaration of criminality is upon the prosecution. It is discharged, we think, when we establish the following:
1. The organization or group in question must be some aggregation of persons associated in some identifiable relationship with a collective general purpose.
2. While the Charter does not so declare, we think it implied that membership in such an organization must be generally voluntary. That does not require proof that every member was a volunteer. Nor does it mean that an organization is not to be considered voluntary if the defense proves that some minor fraction or small percentage of its membership was compelled to join. The test is a common-sense one: Was the organization on the whole one which persons were free to join or to stay out of? Membership is not made involuntary by the fact that it was good business or good politics to identify one’s self with the movement. Any compulsion must be of the kind which the law normally recognizes, and threats of political or economic retaliation would be of no consequence.