Leviticus 20:27
27'Now a man or a woman who is a medium or a spiritist shall surely be put to death. They shall be stoned with stones, their bloodguiltiness is upon them.' " NAS
However, from a Christian perspective we are told "vengeance is mine I will repay says the Lord".
Romans 12:19
19 Never take your own revenge, beloved, but leave room for the wrath of God, for it is written, "Vengeance is Mine, I will repay," says the Lord.
NAS