MONTGOMERY, Ala. (AP) – Alabama told a federal judge this week that it has finished construction of a “system” to use nitrogen gas to carry out death sentences, an execution method authorized by state law but never put into use.
The Alabama Department of Corrections indicated in an Aug. 2 court filing that it is waiting to make sure the nitrogen hypoxia system is ready, before writing procedures for how it will be used. The prison system did not describe how the system would work or give an estimate on when the state may try to use the new execution method.
“The ADOC has completed the initial physical build on the nitrogen hypoxia system. A safety expert has made a site visit to evaluate the system. As a result of the visit, the ADOC is considering additional health and safety measures,” a lawyer for the state attorney general’s office wrote in the court filing.
Alabama in 2018 became the third state – along with Oklahoma and Mississippi – to authorize the untested use of nitrogen gas to execute prisoners.
Death would be caused by forcing the inmate to breathe only nitrogen, thereby depriving him or her of oxygen. Lawmakers theorized that death by nitrogen hypoxia could be a simpler and more humane execution method. But critics have likened the untested method to human experimentation.