Never again

Positive and negative aspects of capital punishment are as contrast among humanity and law enforcement.
First side approve execution supporting with detterrence theory, which tend to stimulate deliberate decision before criminal acting, then ensuring public security eliminating opportunity to kill again releasing murderers after 20 years imprisonment, retribution as a revenge effectiveness owerawing potential criminals and decreasing outgoings for prisoners' needs to survive. Second side argue that death penalty due to Britain 1903-1904 year statistics was pointless, because of increased homicides. If culprit is innocent, adjudgment violate his right to justice and fairness. Also, religion propagate forgiveness and the last is state's role in society solving problems without violance to its citizens.
To sum up, history shows that death penalty implement order, on the other hand it can cause humanity degradation.

Amnesty International

Amnesty International (AI) is a worldwide movement of people who campaign for internationally recognized human rights. AI’s vision is of a world in which every person enjoys all of the human rights enshrined in the Universal Declaration of Human Rights and other international human rights standards.
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From community to community in every corner of the world, Amnesty International enables “ordinary” concerned people to work together to protect other people in danger. Change begins each time with even a single but concerned person who speaks out against errors. Amnesty International helps bring together these voices of protest - giving each of us a greater power to help people to live in dignity, safety and freedom.