首恶 meaning in English

chief criminal; principal culprit
◇首恶者 villain

The chief criminals shall be punished without fail , those who are accomplices under duress shall go unpunished and those who perform deeds of merit shall be rewarded .
首恶必办，胁从不问，立功受奖。
The above declaration is without prejudice to the case of the major criminals, whose offenses have no particular geographical localisation .
上述宣言不影响首恶元凶的案件，他们所犯的罪行不限于某一个特定的地方。