Lethal injection for execution: Chemical asphyxiation?
2007

Lethal Injection for Execution: Chemical Asphyxiation?

Sample size: 33 publication Evidence: moderate

Author Information

Author(s): Zimmers Teresa A, Sheldon Jonathan P, Lubarsky David A, López-Muñoz Francisco, Waterman Linda, Weisman Richard, Koniaris Leonidas G

Primary Institution: University of Miami Miller School of Medicine

Hypothesis

Do current lethal injection protocols effectively cause death as intended?

Conclusion

Current lethal injection protocols may not reliably cause death as intended, potentially leading to suffering.

Supporting Evidence

  • Data from executions in North Carolina and California suggest that thiopental may not be fatal.
  • Potassium chloride does not reliably induce cardiac arrest in lethal injections.
  • Eyewitness accounts report distress during executions, contradicting the intended humane nature of lethal injection.

Takeaway

This study looked at how lethal injections are done and found that they might not work as well as people think, which could mean that some people suffer during the process.

Methodology

Data from executions in North Carolina and California were analyzed, along with published clinical and veterinary studies.

Potential Biases

The secrecy surrounding lethal injection protocols may lead to biased interpretations of their effectiveness.

Limitations

The study was limited by the small number of executions analyzed and the lack of data from many states.

Participant Demographics

Data were collected from executions in North Carolina and California, but specific demographics of participants were not detailed.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pmed.0040156

Want to read the original?

Access the complete publication on the publisher's website

View Original Publication