Vienna as a whole has an extremely low crime rate and a very aggressive Police Force. The International bodies located their all have their own Security Forces. So the City is not Crime Friendly
In Vienna my flat is in the 19th. It is pretty much of high income, well patrolled area; consequently crime is very low.
In NJ my residence is in a very secure area, with a heavy Police presence. In both places my Dogs are general there with me when we are in Residence. Let me say the Resident Labradors have taken a bite out of crime.