Self-defense, protection of others, necessity, and permission are examples of justification defenses. The defendant has not acted illegally but has rather defended himself or another person against an imminent threat of great bodily harm or death. Justification defenses are usually raised by defendants in criminal cases. At their core, these defenses ask jurors to decide whether the defendant's actions were justified under the circumstances. For example, a defendant may claim self-defense if he/she was not at fault in bringing on the confrontation but instead was attacked first. The defense can be used even if the defendant has been found guilty of a crime since punishment is only imposed for crimes committed with malice aforethought. Defendants can also argue that they were acting under the orders of a police officer or other official by claiming qualified immunity. In some cases, defendants may claim temporary insanity caused by severe mental illness such as schizophrenia. If jurors believe this excuse applies, the defendant is not guilty by reason of insanity (NIMBYism in law jargon meaning "not in my backyard").