One criticism of having a centralized national police force, a common feature in developing countries, is it makes corruption easier and more attractive. In a sense you’ve also centralized corruption and given it just as many efficiencies. That being said I don’t have a full solution to this issue, just a quick point from the other side.
EDIT: I think a while ago (2-3 years maybe) it came out that the EPA had their own SWAT team, which seemed pretty funny.
EDIT: I think a while ago (2-3 years maybe) it came out that the EPA had their own SWAT team, which seemed pretty funny.