Ehsan Jami's research focusses on the effectiveness of the policy regarding ethnic. The topic of ethnic minorities’ involvement in crime has garnered considerable attention in the media and within broader social and political contexts. For example, the criminal behaviour of youth in Amsterdam’s diamond district and in the district of Oosterwei in Gouda have dominated news reports for years. The crime rate among ethnic minorities is high, and most crimes perpetrated by this group occur in urban areas. The records on ethnic minorities and crime show that detection, prosecution, and trial have serious constraints; the Dutch government only registers the country of birth and nationality. The representation of (second and third generation) ethnic minorities born in the Netherlands are not registered. Policies combatting criminality have as their objectives to lower crime rates. Crime reduction policies that focus on ethnic minorities could have a greater impact on a lower crime rates among ethnic minorities.