Law Enforcement BC style

While in the mist of my reading for my intro to law enforcement class, I became immersed in the text. Admittedly, I hate history, but just particular areas. I love Egyptian history with the pharoahs and stuff...that kind of thing. So it was no wonder I fell in love with this first chapter.
"The first accounts of developing court systems came from Egypt in approximately 1500BC. The court system was presided over by judges appointed by the Pharoah."
"The Greeks had an impressive form of law enforcement called the ephori. Each year at Sparta a body of five ephors was elected and given almost unlimited powers as investigator, judge, jury, and executioner. From the Greek philosopher Plato, who lived from 427 to 347 BC, came the idea that punishment should serve a purpose other than simple retaliation." This was far better than the old system of "eye for an eye," which could be upheld in very barbaric ways.
And finally, another tid-bit taken from my text book.
"At about the time of Christ, the Roman emperor Augustus chose members from his military to form the Praetorian Guard to protect the palace and the Urban Cohort to patrol the city. Augustus also established the Bigiles of Rome. Initially assigned as firefighters, they were eventually give law enforcement responsibilities. As the first civilian police force, the Vigiles sometimes kept the peace very ruthlessly. The word vigilante derives from these Vigiles."
These tid-bits were taken from my text book for everyone's amusement.
Introduction to Law Enforcement and Criminal Justice, Seventh Edition--Henry M. Wrobleski and Karen M. Hess