I'll be curious to see whether distinction is made between local (State) police and Federal police, the later I believe clearly being unconstitutional.
ML/NJ
Thomas Jefferson, in the Kentucky Resolutions, 1798:
... the Constitution of the United States, having delegated to Congress a power to punish treason, counterfeiting the securities and current coin of the United States, piracies, and felonies committed on the high seas, and offenses against the law of nations, and no other crimes whatsoever; and it being true as a general principle, and one of the amendments to the Constitution having also declared, that “the powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people,” therefore the act of Congress, passed on the 14th day of July, 1798, and intituled “An Act in addition to the act intituled An Act for the punishment of certain crimes against the United States,” as also the act passed by them on the — day of June, 1798, intituled “An Act to punish frauds committed on the bank of the United States,” (and all their other acts which assume to create, define, or punish crimes, other than those so enumerated in the Constitution,) are altogether void, and of no force; and that the power to create, define, and punish such other crimes is reserved, and, of right, appertains solely and exclusively to the respective States, each within its own territory.