This is unadulterated racism. Pure and simple.
Police say, "it's not an issue based on race" yet the primary determinant factor is the race of the individual.
Police are saying "it's part of their goal to reduce Maori offending".
Having those entrusted with the enforcement of society's rules selectively not applying them to reduce offending is entirely analogous to a situation where international rugby referees might work collaboratively to reduce the domination of the All Black team by not enforcing the "forward pass" rule against their opponents. We have words to describe that kind of behaviour... words like;
Besides that, it does nothing to reduce the disparity in skill & ability between the teams concerned - it only masks it in the results.