The restriction of scientific research therefore must never apply to the initial theories or the results arrived at. Scientific research should only be restricted with respect to methods. Therefore, for example, procedures which endanger the mental or physical health of living beings are not covered by the Fundamental Law. Since in science there are no final or self-evident truths, then also there can be no such truths in respect to scientific investigation of the events of the 3rd Reich. Here also it is a fundamental duty of science to criticize old results and revise them when necessary.
Revisionism is an essential component of every science.
Toward Freedom of Expression To protect the freedom to express an opinion that corresponds with that of the ruling class is not difficult in any state. The most horrible dictatorships fulfill that criteria. A state that honors human rights distinguishes itself in that it allows those the freedom of expression whose ideas are not welcome to the ruling class. When someone says the Holocaust did not happen the way we have always heard it did, or says it did not happen at all, his right to free expression will be defacto denied. The reason given for this will be that such assertions harm the dignity of those Jews once persecuted and murdered, their descendants today and the entire race of Jews.