In 2004, as reports Amnesty International, 3,797 people in 25 nations were executed.China accounts for the bulk of these executions - 3,400 cases.Kuwait is the leader in the number of executions per 100,000 residents - 400 compared to 260 in China and 230 in Iran, the runner-up on the total number, 159 (Wikipedia).
Thus, the support for death penalty surges in nations where especially outrageous murders take place.
On the contrary, a lower criminal rate reduces the support.
This paper will seek to prove that death penalty has to be preserved as a valid means of prevention serious crimes.
It will examine the effect of death penalty on society and its relevance to the protection of interests of common citizens.
The choice of a particular method in Europe in the Middle Age, for instance, depended on the social status of the condemned.
Painless and respectable ways were reserved for the aristocracy; and more painful for the common people, such as hanging or breaking on the wheel.
For instance, “the United Nations Convention on the Rights of the Child, which among other things forbids capital punishment for juveniles, has been signed and ratified by all countries except the USA and Somalia” (Wikipedia).
Some international conventions such as the Second Optional Protocol to the International Covenant on Civil and Political Rights, and the Sixth Protocol to the European Convention on Human Rights have been adopted, although they only bind nations that have ratified them.
Second, supporters or opponents of death penalty need to find out whether this penalty can be acknowledged on moral grounds, solving the problem of whether human beings are justified in killing other human beings.
Although the arguments stated remain basically the same throughout history of the discussion, evidence can vary, and the findings, although controversial, can tilt the public opinion to one or the other side.