No. Because that doesn't matter. Just as ethnicity doesn't matter. Criminal is a criminal.
Some might find criminal representation very relevant to that policy decision. Perhaps you do not. That’s certainly your prerogative. But outright denying the relevance is absurd.
And if you already know that "left handed people are significantly overrepresented" from some other source, you don't have to make the information public for these cases -- you know it already. Probably from a proper statistic made by the government. Not by counting a media-reported incident also reported the person to be left-handed.
Or are you saying we should only talk about a person's ethnicity when it's in a positive light?
Maybe this article should have just said "a German husband-and-wife dream team"?
Yes, because integration can only work when people have role models to look up to. This is also why (even if she's as "top cop" as it can get) the appointment of Kamala Harris is so important, or Barack Obama winning in 2008 - it is a "ceiling breaker" event, it shows to people that even if one is not part of the "usual old boys club" it is possible to achieve success.
Painting ethnicity in a negative light, especially when it's totally unrelated and irrelevant, however was judged as "potentially inciting or furthering racial division" in German media codex.