Capital punishment
Racial, ethnic, and social class bias

Opponents of the death penalty argue that this punishment is being used more often against perpetrators from racial and ethnic minorities and from lower socioeconomic backgrounds, than against those criminals who come from a privileged background; and that the background of the victim also influences the outcome. Researchers have shown that white Americans are more likely to support the death penalty when told that it is mostly applied to black Americans, and that more stereotypically black-looking or dark-skinned defendants are more likely to be sentenced to death if the case involves a white victim. However, a study published in 2018 failed to replicate the findings of earlier studies that had concluded that white Americans are more likely to support the death penalty if informed that it is largely applied to black Americans; according to the authors, their findings "may result from changes since 2001 in the effects of racial stimuli on white attitudes about the death penalty or their willingness to express those attitudes in a survey context."

In Alabama in 2019, a death row inmate named Domineque Ray was denied his imam in the room during his execution, instead only offered a Christian chaplain. After filing a complaint, a federal court of appeals ruled 5–4 against Ray's request. The majority cited the "last-minute" nature of the request, and the dissent stated that the treatment went against the core principle of denominational neutrality.

In July 2019, two Shiite men, Ali Hakim al-Arab, 25, and Ahmad al-Malali, 24, were executed in Bahrain, despite the protests from the United Nations and rights group. Amnesty International stated that the executions were being carried out on confessions of "terrorism crimes" that were obtained through torture.

On 30 March 2022, despite the appeals by the United Nations and rights activists, 68-year-old Malay Singaporean Abdul Kahar Othman was hanged at Singapore 's Changi Prison for illegally trafficking diamorphine, which marked the first execution in Singapore since 2019 as a result of an informal moratorium caused by the COVID-19 pandemic. Earlier, there were appeals made to advocate for Abdul Kahar's death penalty be commuted to life imprisonment on humanitarian grounds, as Abdul Kahar came from a poor family and has struggled with drug addiction. He was also revealed to have been spending most of his life going in and out of prison, including a ten-year sentence of preventive detention from 1995 to 2005, and has not been given much time for rehabilitation, which made the activists and groups arguing that Abdul Kahar should be given a chance for rehabilitation instead of subjecting him to execution. Both the European Union (EU) and Amnesty International criticised Singapore for finalizing and carrying out Abdul Kahar's execution, and about 400 Singaporeans protested against the government's use of the death penalty merely days after Abdul Kahar's death sentence was authorised. Still, over 80% of the public supported the use of the death penalty in Singapore.
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