An Order in Council is a legal instrument issued by the executive branch, typically in Commonwealth realms, to implement decisions without the need for new legislation. It takes two forms: prerogative orders, which exercise royal authority (e.g., the prorogation of Parliament), and statutory orders, which are based on parliamentary acts (e.g., the regulation of local governance).
In the UK, such orders are formalized by the monarch following advice from the Privy Council, while in Canada, they are used for federal and provincial governance. Thinkers such as John Adams and Thomas Hobbes emphasized its role in shaping authority, from colonial administration to judicial review. The concept highlights the relationship between executive power and legislative oversight, evolving from prerogative to statutory structures to meet the needs of governance.