A more thorough explanation:

The sudden-peril doctrine, also known as the emergency doctrine, is a legal principle that allows a person to be exempt from the standard of reasonable care if they acted instinctively to meet a sudden and urgent need for aid.

For example, if someone sees a child drowning in a pool and jumps in to save them without thinking, they may be protected by the sudden-peril doctrine if they are sued for negligence.

The emergency doctrine also applies to medical treatment in dire situations. If neither the patient nor a responsible party can consent to treatment, but a reasonable person would do so, consent is inferred.

Another example of the sudden-peril doctrine is when a police officer conducts a search without a warrant. If the officer has probable cause and reasonably believes that immediate action is needed to protect life or property, the search may be allowed under the emergency exception.

Overall, the sudden-peril doctrine provides legal protection for individuals who act in emergency situations without thinking, as long as their actions were reasonable under the circumstances.