Apparently, Muslims cannot help it as much as non-Muslims can, if they rape or kill — and so they must be given more lenient sentences than non-Muslims receive. In effect, the German courts thus follow the Sharia, which also regards it is a mitigating factor if Muslims hurt people in order to observe and apply the Sharia. Via 10news.dk, translated by Sandra from Bild (pay wall):
Jolin's murderer got a lenient sentence because of his religion
Berlin – The German-Afghan Isa S. (24) murdered his pregnant ex-girlfriend Jolin († 22), because she did not want to abort his child. The sentence: lifelong — but with greater possibility for parole, against the prosecutor's wish.
Judge Rolf Vogel justifies his decision: "Because of the cultural and religious background".