Here is information about "paddyrollers" that I have gleaned several online sources which are noted in this post:
"Slave patrols (called patrollers, pattyrollers or paddy rollers by the slaves) "apprehended runaways, monitored the rigid pass requirements for blacks traversing the countryside, broke up large gatherings and assemblies of blacks, visited and searched slave quarters randomly, inflicted impromptu punishments, and as occasion arose, suppressed insurrections. The patrollers generally made their rounds at night, with their activity and regularity differing according to time and place. And patrol duty was often compulsory for most able-bodied white males. Some professions were exempt, but otherwise avoiding duty required paying a fine or hiring a substitute." http://eh.net/bookreviews/library/0513
"Slave patrols were populated in the beginning by people from all walks of life in the South, from wealthy land- and slave-owning aristocrats on down. Service in the patrols was required by law and refusal to perform patrol duty met with stiff fines. As such, Hadden writes, "Historians have routinely assumed that since patrollers did not stop every runaway, it matters little what patrols did; their uneven enforcement of the law must have diminished their impact on Southern history and slavery. As a result, the number of prominent slave histories that fail to mention even the existence of patrollers is startling. And when histories do include them, patrollers generally appear as little more than straw men, paraded for their inadequacies and little else.
When mentioned at all, slave patrollers are drawn as poor, slaveless, sadistic whites of very low social rank. In fact, the dominant image is of Marks and Loker, the supremely evil slave-catchers of Uncle Tom's Cabin.
But, as Hadden's research reveals, "Slave patrols between 1704 and 1721 frequently included men of superior social status, not just poor slaveless whites." And in a two-county study in Virginia, Hadden finds that "'Poor whites' does not describe the status of 18th century slave patrollers ...Typically, these men headed their own households. ...Half or more of all patrollers owned slaves, usually one to five slaves." http://books.google.com/books?id=WC7andkrJNcC&dq=slave+patrols+hadden&source=gbs_navlinks_s