/ˈprɪnsəpəl əˈfɛns/ – Phrase
Definition: hành vi phạm tội của kẻ chủ mưu.
A more thorough explanation: The term “principal offence” refers to the main or primary offense committed by an individual, as opposed to any secondary or lesser offenses that may be associated with the same incident. In legal terms, the principal offence is typically the most serious or significant offense for which an individual may be charged or prosecuted.
Example: The principal offence in this case is armed robbery.