"In the 1930's the regime made sure the concentration camps were reported in the press, held them up for praise, and proudly let it be known that the men and women in the camps were confined without trial on the orders of the police. ..........................The novelist Christa Wolf indicated some years ago, that anyone in NAZI Germany who wanted to find out about the Gestapo, concentration camps, and the campaigns of discrimination and persecution, need only read the newspapers." - BACKING HITLER: CONSENT AND COERCION IN NAZI GERMANY by Robert Gellately (Introduction)
The NAZI'S didn't need Judge Rutherford to expose (and take credit for such exposure) the detention/concentration camps to the world. The Germans were proud enough of them and quite capable of introducing to the world their 'unique' penal system in their own media.