Here’s the arrest rate for different nationalities in the UK once you weight for
their population
Brits = 12 arrests per 1,000 people
Somalis 64.6 per 1,000 people
Moroccans 70 per 1,000 people
Algerians 72.7 per 1,000 people
Iraqis 92.9 per 1,000 people
Afghans 106.9 per 1,000 people
Albanians 209.8 per 1,000 people
(and this is reported crime...)