Hell, don't just cut off funding & cooperation for not participating, tax them also - as in if they don't want to participate, the need to pay fees to the FBI,

Hell, don't just cut off funding & cooperation for not participating, tax them also - as in if they don't want to participate, the need to pay fees to the FBI, perhaps the amounts related to the costs of FBI staff gathering the same data about them - i.e., either provide the data, or pay to have it provided for you. That should get the attention of a few mayors, town/city councilpersons, if not just the police chiefs noticing the holes in their budget.