Emergency evacuation refers to the act of indulging in other people's minor legitimate interests as a last resort in order to protect the public interest, personal safety and other rights of oneself or others from ongoing danger. Acts of great legitimate interests. Emergency evacuation has the following characteristics: 1. There must be a danger that threatens legitimate interests, which is a prerequisite for emergency evacuation. The so-called danger refers to some urgent factual state that is enough to cause damage to legitimate interests. 2. The danger must be occurring. The so-called danger is occurring means that damage will be caused immediately, or the danger that is causing damage has already occurred but has not yet ended. Emergency evacuation can only be implemented when the danger has occurred and has not yet ended, otherwise it is not emergency evacuation. 3. It must be to protect legitimate interests from ongoing dangers. Legitimate interests include the country, public interests, personal or other rights of yourself or others. 4. The object of emergency evacuation must be an innocent third party. This is the condition for the object of emergency evacuation. 5. Risk-avoiding behavior is carried out under unavoidable circumstances. 6. Hedging behavior shall not exceed the necessary limit to cause undue harm. Legal basis: "Article 21 of the People's Republic of China and the Criminal Law of the People's Republic of China" shall be taken as a last resort in order to protect the interests of the state and the public, and the personal, property and other rights of oneself or others from ongoing dangers. If the emergency avoidance behavior causes damage, he shall not be held criminally responsible according to law. If the emergency avoidance behavior exceeds the necessary limit and causes undue damage, he shall bear criminal liability, but shall be mitigated or exempted from the punishment prescribed in paragraph 1. Dangerous behavior does not apply to people who have specific responsibilities in their positions or businesses.