Also some interesting things I just found:
[ame=http://en.wikipedia.org/wiki/Castration]Castration - Wikipedia, the free encyclopedia[/ame]
Physical castration appears to be highly effective as, historically, it results in a 20-year re-offense rate of less than 2.3% vs. 80% in the untreated control group, according to a large 1963 study involving a total of 1036 sex offenders by the German researcher A. Langelüddeke, among others, much lower than what was otherwise expectedIn 1778 Thomas Jefferson wrote a law in Virginia that contained a punishment of castration for men who engage in sodomy.
The study you quoted is dated 1963."Voluntary" chemical or surgical castration has been in practice in many countries—reports are available from American and European countries in particular for over eighty years (chemical for circa thirty)—as an option for treatment for people who have broken laws of a sexual nature, allowing them to return to the community from otherwise lengthy detentions. The effectiveness and ethics of this treatment are heavily debated.
Can a sex offender still have sex after he's been castrated? - By Michelle Tsai - Slate Magazine
Republican presidential candidate Mike Huckabee is under the spotlight this week for helping grant parole to Wayne Dumond, a convicted rapist who had been castrated more than a decade earlier in what he claimed was a violent attack.* After Dumond was released from prison in 1999, he went on to rape and murder at least one woman, and maybe two. How can someone who's been castrated still commit rape?
Just to answer the question. Castration usually refers to removal of the testicles, not the penis. And rape can occur without penile penetration - fingers or foreign objects.How can someone who's been castrated still commit rape?
How can anybody NOT support killing child rapist?
~Following My Own Flow~
It would be a good punshment for any violent crime.
1. It inhibits violence.
2. It limits the proliferation of criminals.
All child molesters should be shot before they enter any prison.