Seeking a more humane method of execution than hanging. Today, electrocution is not used as the sole method of execution in any state. Electrocution was the sole method in Nebraska until the State Supreme Court ruled the method unconstitutional in February 2008. For execution by the electric chair, the person is usually shaved and strapped to a chair with belts that cross his chest, groin, legs, and arms. A metal skullcap-shaped electrode is attached to the scalp and forehead over a sponge moistened with saline. The sponge must not be too wet or the saline short-circuits the electric current, and not too dry, as it would then have a very high resistance. An additional electrode is moistened with conductive jelly (Electro-Creme) and attached to a portion of the prisoner's leg that has been shaved to reduce resistance to electricity. The prisoner is then blindfolded. After the execution team has withdrawn to the observation room, the warden signals the executioner, who pulls a handle to connect the power supply. A jolt of between 500 and 2000 volts, which lasts for about 30 seconds, is given. The current surges and is then turned off, at which time the body is seen to relax.