Index/Topics/Nitrogen Hypoxia Executions

Nitrogen Hypoxia Executions

The use of nitrogen hypoxia as a method of execution in the United States, including its constitutionality and the challenges it faces in federal and state courts.

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Jan 26, 2026
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What bills related to execution methods were filed in the 2025–2026 Indiana legislative sessions?

Multiple bills filed in the 2025–2026 would beyond lethal injection — most prominently Senate Bill 11 to reauthorize execution by and House Bill 1119 to add firing squad and as options — while additio...

Jan 26, 2026
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Which U.S. states have legislated nitrogen hypoxia or gas‑chamber options for executions, and what did their bills say?

Several states have written or more generalized “lethal gas” options into law or into proposed bills; , and are among the earliest adopters on the books, Alabama is the only state that had developed a...

Jan 28, 2026
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What have court rulings said about the constitutionality of nitrogen hypoxia and other gas‑based execution methods?

Federal and state courts have so far declined to categorically enjoin , applying the ’s method‑of‑execution framework that requires inmates to identify a feasible, readily implemented alternative and ...

Jan 27, 2026

Which states have formal execution protocols (not just statutes) for nitrogen hypoxia and what do those protocols disclose?

Two states are known to have issued formal, operational documents describing how would be carried out: published a heavily redacted execution protocol that was used in practice and spells out steps su...

Jan 6, 2026

What legal rulings have addressed gas‑chamber executions and the Eighth Amendment in the United States?

Federal courts have produced conflicting rulings on whether gas‑chamber executions violate the Eighth Amendment’s ban on “cruel and unusual” punishment: a 1994 district court decision—affirmed by a un...