/ɡreɪ ˈɛriə/ – Phrase
Definition: Khu vực không rõ ràng hoặc mơ hồ trong pháp lý.
A more thorough explanation: a category of law which has not been decided or which no source of law addresses
Example: The compounds are not illegal and it’s not illegal to sell bath salts, it’s a very grey area.