Nebraska's castle law states that any force used must be deemed necessary by the person protecting themselves. Deadly force can be used but only if the person believes that it is necessary to avoid rape, serious injury, kidnapping, or death. There is a duty to retreat when the person is not at their home or place of work.
Castle Laws are laws that address the use of force when defending one's self inside their home, or on their property. Some states expand this to vehicles, and the person's place of work. Castle Laws generally include: the places where this law applies, the requirements fro use of deadly force, if there is a duty to retreat, the amount of force that maybe used in defending one's self or others. These vary widely from state to state.