Actually, the reason for the hiring of the somali officers was the fact that Minneapolis has a somali gang problem. The somali gangs prey mostly on other somalis and the community rarely reported crimes to MPD. The hope was that hiring officers who speak the language and are more approachable for the community was a way to get a grip on the problem. It hasn't worked out that way.
It may never work out that way.
There are many ethnic groups who will never talk to cops because where they came from, if there were cops, they were no better than the criminals.