beasts. Criminals that were used had committed crimes that carried a death sentence or harsh manual labor. The crimes which led to the arena were murder, treason, robbery and arson. Criminals sentenced to forced labor were often obliged to serve as gladiators, and were sentenced to three years of combat and two years in the schools. Sometimes penalties were differentiated according to social class, thus for certain crimes which in the case of slaves would involve execution, free men or freedmen were condemned to fight in the arena instead. This did not of course make them gladiators, unless they were trained first, as those required to provide this sort of sport not always were. And indeed as gladiators became more expensive in the second century AD the use of untrained criminals in the amphitheater increased.(Jory p.537) Most gladiators, at Rome and elsewhere were slaves, but in addition there were always some free men who became gladiators because they wanted to. The profession was an alternative to being a social outcast. Th
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