Crime in Hamburg, Germany

Very dangerous city compared to how it was before.
I lived in Hamburg my whole life and up until the refugee crisis it was very safe. However now its turning into a sh*thole. After 30yrs I moved away last year. I personally know 9 people who got shot at, two of them are dead.
There is no more safety anywhere. Random violent crimes happen all the time. Recently there was a gang rape of 9 arabs against a 16yr old girl in Stadtpark. Only one got convicted to like two years in prison, rest is free. Had a lot of friends from eastern Europe who came for work, almost all of them left.
PS: Hamburg has the highest Afghan diaspora in Europe. More than 60 thousand Afghans live there, and they get more by the year.

@ Dan: I can't give a simple answer when I think about it, because Hamburg is one of those cities where sometimes just one block separates the bourgeois from the poor neighborhood. At least that applies to the inner-city or urban districts. In addition to the districts you mentioned, I would also avoid Jenfeld, Osdorfer Born, Neugraben-Fischbek and Lurup, but these are all neighborhoods that are pretty much on the outskirts of Hamburg. Don't worry too much. Hamburg is relatively safe in most areas. Districts like Osdorfer Born or Neugraben-Fischbek are so far away from the downtown that I wouldn't move there just for that reason alone.

I live since 10 years in Hamburg 10 min walking from the train station. I never even heard of somebody that got robbed or attacked. I wouldn't listen to much at people from the countryside that "feel" that Hamburg is a dangerous city.

I was born in Hamburg. I am now 35 years old. I have been waking around Hamburg alone since I've been 9 years old. (Even younger in my neighbourhood) I have never ever (!) felt unsafe. Even now me and my friends would BBQ/drink in summer in the municipal part until 2am at night, and would feel perfectly safe to walk home alone through the dark park at night. It's completely normal here. No one I know has every been attacked/robbed etc at night when walking home.
Sure you see your drunk guys that you may pass on occasion and try to talk rubbish to you, but when you do you just ignore them and they don't do anything.
I don't know what rini is talking about. I think Noah describes it well, and I would agree with Paul about the areas you may want to avoid at night - but they are only a few and no tourist would ever go there.