"• Overall, local police spending represented 45% of the Nation's total justice expenditure, and State corrections accounted for the second largest portion, 33%.
"• Police protection is primarily a local responsibility; accordingly, local governments spent 69% of the total police protection expenditure in the country in 2003.
"• Corrections is primarily a State responsibility; as such State governments accounted for 64% of the Nation's corrections expenditure.
"• Judicial and legal services in the United States were funded primarily by local (43%) and State (38%) governments."

Source

Hughes, Kristen A., "Justice Expenditure and Employment in the United States, 2003" (Washington, DC: US Dept. of Justice, Bureau of Justice Statistics, April 2006), NCJ212260, p. 4.
http://www.bjs.gov/content/pu…