[QUOTE=magellan01]
I guess it all depends where you draw the baseline. I don’t think the historical evidence makes your point, or minie.
[/QUOTE]
We’ll have to differ - I think the historical case for negligible deterrence value is clear. I think the same is true of the current use of the DP - The UN and Amnesty international agree with me:
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[QUOTE=Amnesty Intl.]
7. The deterrence argument
Scientific studies have consistently failed to find convincing evidence that the death penalty deters crime more effectively than other punishments. The most recent survey of research findings on the relation between the death penalty and homicide rates, conducted for the United Nations in 1988 and updated in 2002, concluded: “. . .it is not prudent to accept the hypothesis that capital punishment deters murder to a marginally greater extent than does the threat and application of the supposedly lesser punishment of life imprisonment.”
(Reference: Roger Hood, The Death Penalty: A World-wide Perspective, Oxford, Clarendon Press, third edition, 2002, p. 230)
[/QUOTE]
](http://web.amnesty.org/pages/deathpenalty-facts-eng)
[QUOTE=magellan01]
So, barring any reliable historical evidence, it makes sense to me to look at simple conditioning. And animals can be, and are, conditioned to increase certain behaviors and curtail others. We are hard-written to avoid pain and seek pleasure.
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…but we also reason our way past simple animal drives - we have arguments like “They’ll never catch ME!” or “All those guys they caught weren’t as smart as I am!” and similar. People just aren’t that simple.
[QUOTE=magellan01]
I quibble with the first part of this. I’m arguing that if one can add the deterrence factor while not desensitizing society to brutalization, that that would be the best situation. And I think it morally incumbent upon us to seek that out. And it depends how you weight each side of the equation. To make the point in an extreme way. If you were able to make the deterrence factor 99.9% effective, yet that would desensitize society (however the hell you would measure that) by .1%, you’d have to accept that relatively small negative, wouldn’t you? Obviously, if the numbers were flipped you’d have to forego the tiny gain in deterrence.
[/QUOTE]
I’m thinking any increased brutalisation of Society at all is going to have a negative feedback effect that will rapidly outweigh the deterrence value. I don’t think this is something you can do any numeric cost-benefit analysis on. It’s a chaotic system, and anything you do that you know will have some - any - negative effects is to be avoided because of that unpredictability. Why increase the negative effect on Society - an effect you admit would be hard to quantify - when there are alternatives? Because you think the deterrent benefits might outweigh it. What about those of us who weight the negative effects on Society much higher than you do? We get a say too, surely?
Currently, 2/3 countries don’t have the death penalty, and that number increases steadily. Having a more-efficient DP isn’t an advance. It’s a step back. Currently (well, 2006), the US, China, Iran, Pakistan, Iraq and Sudan execute 91% of all people who have the DP applied to them. 6 countries.
And look at the company you want to keep.