In theory, people presently judge self-help of environmental infringement mainly according to the theories of traditional criminal law, legitimate defense in civil law and necessity.

目前理论界对于环境侵权自力救济的认定，主要适用传统刑法与民法正当防卫、紧急避险的构成理论。

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Based on the principle of relative judgment by law, Proper behavior has the opportunities to become the illegal infringement as the premise of self-defense.

基于违法性判断的相对性原理，正当化行为也可能成立作为正当防卫前提的不法侵害。

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The penalties even for inadvertent infringement are so punishing that creators routinely have to self-censor their work.

ECONOMIST: Why the rules on copyright need to return to their roots