Inmates asked to provide own lethal injections
Arizona has devised a new way of sidestepping an EU ban on the supply of lethal injection drugs to US jails - inviting lawyers to buy them on their clients' behalf.
The new protocol is the latest attempt to tackle the problem of carrying out executions without two key drugs - pentobarbital, a sedative, and sodium thiopental, an anaesthetic.
States where the death penalty is still in force have adopted an array of measures to carry out executions without the drugs which were a key part of a cocktail used in lethal injections.
They have been forced to seek alternatives since 2011 when Lundbeck, the Danish manufacturer of pentobarbital, banned its use for executions. The European Commission outlawed the sale of sodium thiopental for the same purpose in March 2012.
Lawyers have dismissed the proposals as absurd, saying that there was no way they could obtain execution drugs legally.