Vengeance, Evolution and the Criminal Justice System

Evolutionary Need for Vengeance

The immediate reaction to being harmed is to cause harm in return. It is a trait that is common through nature with many organisms. Overall, evolution almost always favors the members of a species that fight back. However, a change in human evolution caused a divergence from the pattern in the rest of nature that changed the magnitude of how humans fighting back and this created the modern concept of revenge.

Tribal Blood Feuds in New Guinea

As the human race formed, humans began living together in tribes. Whenever a member of the tribe was injured, particularly when one was killed by a member of another tribe, the injured tribe responded by killing many members of the other tribe. This behavior has been studied by University of Maine anthropologist Paul Roscoe who studied tribes in New Guinea, who today live similarly to the early human tribes. Vengeance drove the response to an act that threatened the safety of a tribe. In the tribal societies revenge killings were the common response when a family member was killed, but the study by Roscoe has found that the members of the tribe perceived that their motivation was to weaken the enemies and prevent later attacks. However, from historical records, Roscoe found that the fighting often escalated and fighting could last for decades. These tribes were guided by their evolutionary desire to fight back and they responded more severely with the intention of increasing their safety. This is an example of human nature overwhelming nature’s limitations and shows that it was ineffective.

Tribal Blood Feuds in the Rest of the World

The behavior of the tribes in New Guinea was common throughout the ancient world, where the code of Hammurabi prompted the famous phrase “eye for an eye”. Although now perceived as Draconian, this was a dramatic liberalization of justice, intended to end destructive tribal revenge killings. However, it appears that this may have been the last dramatic effort to reduce the elements of revenge in the criminal justice system. Today vengeance has remained as a major element, if not THE major element, in criminal justice systems throughout the world.

Vengeance Today

Vengeance is undoubtedly an element of the American criminal justice system. We allow the testimony of victims and their relatives in order to determine sentencing, and people still commonly use the rhetoric that “criminals have to pay.” Some high minded intellectuals think that the American system is above the primitive desires of retribution and that the goal of our criminal justice system is to prevent crime. However, the evolutionary bloodlust has remained prevalently in our societal structure of criminal justice. Capital punishment is probably the clearest form of institutionalized revenge in the criminal justice system: if removal from society were a goal, life incarceration would achieve the same end. Texas is the most prolific exhibitor of vengeance through the criminal justice system, choosing to exact revenge in a state rife with vigilante sentiments as a proud part of its history. An essential question to ask is if this is because of in the inertia of primitive justice systems or if it is because we still cannot resist the evolutionary urge to exact vengeance on someone who committed a crime. If the mere fact that the element of the vengeance in the criminal justice system has always been present is the sole reason for its continued existence, then it should be possible to move the sentiments of the American people. The death penalty, as an ultimate example of revenge in our justice system is falling out of favor with the American people, of course with the exception of the bastion of executions, the Republic of Texas. This could be a sign that some measure of change is on the horizon.

Lets Call Our Justice System What it is

I see no problem with a societal decision that vengeance is an important element of our criminal justice system (I know this is surprising given the flow of the argument). What I do see as a problem is dressing the wolf in sheep’s clothing. Some try to make the argument that execution or additional punishment serves as a means from separating the law abiding public from the “bad seeds” or that the punishment serves as a deterrent. Countless studies suggest that this assertion is simply false, but an argument that says that vengeance should be exacted for crimes, however crude is one that I can accept. I say this though with one caveat, the society must openly recognize that they are making this choice in the sacrifice of reducing crime. When people recognize that the criminal justice system is structured primarily as an extension of our evolutionary bloodlust, the society can make a full, informed conscious choice. I find it hard to believe that the society would choose such a path, but I would be happy to live in a society that was self-aware enough to recognize this truth even if it makes the wrong decision.

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