Nebraska has changed the way it uses the electric chair to execute people to head off possible legal challenges of the procedure.
Prison officials have decided to use one, continuous jolt of electricity for 15 seconds instead of several shorter jolts.
Department of Corrections spokesman Steve King says the change was implemented March 15.
The change is in anticipation of court arguments later this month involving three men convicted in the slayings of five people inside a Norfolk bank in 2002.
Nebraska is the only state with electrocution as its sole means of execution.