Attorneys for a group of Oklahoma death row prisoners say the state hasn’t finished its revisions to a plan for carrying out executions, as required by a 2015 legal agreement that suspended capital punishment in the state.
Their challenge will be considered at a federal court hearing on Tuesday.
The argument is the latest in a roughly six-year lawsuit challenging the way Oklahoma executes people.
The state agreed not to schedule executions until 150 days after it provided – among other things – a new checklist for how prisoners would be put to death. The state released the new rules earlier this year.