/stætʃʊtəri ˈɪnstrəmənt/ – Phrase
Definition: Quy định pháp lý được ban hành bởi cơ quan lập pháp.
A more thorough explanation: a law made under the authority of another law
Example: His amendments would also give ministers power under “statutory instrument” – meaning no further Act of Parliament was needed – to “replace the TV licensing offences with civil monetary penalties”.