Claims
1) deteriorates crime
It makes people think twice about their actions, instil fear evidence Michael Summers, PhD, MBA, Professor of Management Science at Pepperdine University, wrote in his Nov. 2, 2007 article "Capital Punishment Works" in the Wall Street Journal:
"...[O]ur recent research shows that each execution carried out is correlated with about 74 fewer murders the following year... The study examined the relationship between the number of executions and the number of murders in the U.S. for the 26-year period from 1979 to 2004, using data from publicly available FBI sources... There seems to be an obvious negative correlation in that when executions increase, murders decrease, and when executions decrease, murders increase...
Paul H. Rubin, PhD, Professor of Economics at Emory University
"Recent research on the relationship between capital punishment and homicide has created a consensus among most economists who have studied the issue that capital punishment deters murder. Early studies from the 1970s and 1980s reached conflicting results. However, recent studies have exploited better data and more sophisticated statistical techniques. The modern refereed studies have consistently shown that capital punishment has a strong deterrent effect, with each execution deterring between 3 and 18 murders...
2) Justice for the victim is achieved only through the death penalty.
Refutation, opposition says it does not bring justice because mistakenly convict the innocent person
With the life sentence the criminal somehow still gets back on the streets and then might kill again.
The people who survive need a peace of mind that the person who committed the crime can never come after them again. life sentence does not work out; the judicial system gives a person life sentence but somehow they get back on the streets and statistics show that nearly 30 convicted killers released from jail over the past 10 years have