Aren't you ignoring low crime countries with brutal criminal justice systems such as Thailand? It is far more likely the culture of a country that predisposes it to higher or lower crime rates (and the types of crimes). For example, the deeper the black community becomes entrenched in the hip hop culture, the more crime they commit. You see a black person from any financial class adopt white culture, you will find that they succeed. The more they adopt hip hop culture, the more they are failures, criminals ETC.