The story of the intersection between vigilantism and law enforcement In frontier Indiana, vigilantism was a grim necessity. Beginning with the vigilance committees of the 1860s that lynched the Reno Gang and the Knights of the Golden Circle, who plotted to assassinate Governor Morton, the Hoosier State was a hotbed for citizens taking the law into their own hands. Later groups such as the White Caps enforced their own moral code, while the state legislature sanctioned the Horse Thief Detective Association and the Banking Vigilantes. Chronicling the vigilante groups that operated in Indiana, author Robert Bowling explores the evolution of law enforcement from the lone marshal on the frontier to the birth of the modern police department and the Indiana State Police.