Then it's definitely a good thing that Sweden has banned its police from saying the ethnicity of perpetrators in official police reports.
Who cares about the truth? Avoiding the appearance of racism is definitely more important.
In Perth in Western Australia, no reference is allowed to made by Police reports to the colour of skin or race, or ethnic background.
The traditional owners/indigenous population/aboriginals in Western Australia make up 80% of the prison population, yet only constitute 4% of the actual population.
So it makes things a little tricky when you have a "Crime Stoppers" report, and you cannot say they had black skin.
Now we have African Australian's in the same situation, and their crimes are different yet again.
If you are chasing a criminal, it would be useful just to say "Aboriginal" or "African" appearance, but political correctness in Australia means we cannot read this. Basically what it means is that the proportion of crime committed by these two ethnic groups is so astronomically high, it is now considered rude to reference those people in Police reports at the fear of 'stereotyping' them in society as 'black' criminals.
In terms of ethnic groups, this is the research I found.
http://www.abs.gov.au/ausstats/abs@.nsf/Lookup/by%20Subject/4517.0~2014~Main%20Features~Country%20of%20birth~7Vietnamese were over-represented in drug crime.
Lebanese were over-represented in terrorism offences.
Sudanese were over-represented in pretty much everything.
All of the muslim countries researched (Afghanistan, Iraq, Lebanon) had a higher proportion of imprisonment than people born in Australia.
Sudanese is a tough one, because most refugees were driven out by an Islamic execution order on these people. So violence begets violence.
I don't need a research paper to tell me certain countries will bring crime to Australia and the USA.