[donmeaker]

http://www.questia.com/googleScholar.qst?docId=5000634299
has a good reference on the slave patrol system.

[PeaRidge]

Here were the revolts..the reason for the patrols, and the successful control by armed citizens.

1712 New York Slave Revolt
(New York City, Suppressed)
1739 Stono Rebellion
(South Carolina, Suppressed)
1741 New York Conspiracy
(New York City, Suppressed)
1800 Gabriel Prosser
(Virginia, Suppressed)
1805 Chatham Manor
(Virginia, Suppressed)
1811 German Coast Uprising
(Territory of Orleans, Suppressed)
1815 George Boxley
(Virginia, Suppressed)
1822 Denmark Vesey
(South Carolina, Suppressed)
1831 Nat Turner's rebellion
(Virginia, Suppressed)
1842 Slave Revolt in the Cherokee Nation
(Southern U.S., Suppressed)
1859 John Brown's Raid
(Virginia, Suppressed)