legalize murder but tax it heavily and replace the criminal justice system with gladitorial combat.

Legalize a quota of murders annually and tax them heavily in order to gain money from crime, rather than losing it in enforcement, forensics, and incarceration costs. Tax evasion and crimes worthy in the current system of incarceration would merit entrance into a system of gladitorial combat, in which lesser criminals would build and maintain the arenas, and those who would recieve the death penalty would be entered as gladiators. For arena rules, reference the Romans, and no firearms. Government profits from advertisement and entrance fees.