US Court Flags Possible Cruelty in Alabama Nitrogen Gas Execution, Seeks Further Review

A federal appeals court has ordered a deeper review of Alabama’s nitrogen gas execution method , raising serious concerns over whether it violates the US Constitution’s ban on cruel and unusual punishment , but stopping short of blocking a scheduled execution.

The three-judge panel of the US appeals court sent the case back to a lower court for further examination after finding that the current record may not fully address the potential suffering caused by the procedure. However, it declined to issue a stay, leaving the execution schedule for Jeffery Lee unchanged for now.

The case involves Jeffery Lee, who is set to be executed later this week for a 1998 double murder during a robbery. His lawyers argue that the nitrogen hypoxia method can cause prolonged distress, including involuntary movements and gasping, and should not be used until fully reviewed under constitutional standards.

The court applied established legal tests requiring consideration of whether the method creates a substantial risk of serious harm and whether a feasible alternative execution method exists. Judges specifically asked the lower court to assess whether options such as a firing squad could be legally and practically considered.

Alabama first introduced nitrogen gas executions in 2024, using a sealed respirator mask that replaces breathable air with pure nitrogen, causing death through oxygen deprivation. The method has been used several times in the state and once in Louisiana, drawing criticism from human rights advocates over possible prolonged suffering, with at least one reported execution taking more than 30 minutes.

Despite the concerns, the appeals court did not halt the execution, meaning it could proceed unless further intervention is ordered at the last moment.