The judiciary might be called upon to help interpret the Act created by the legislature or the rules and regulations created by the regulator.
Example: the Supreme Court of Canada, the High Court of Maharashtra.
Other terms with the same meaning and function: Judicial branch, court (could be district, state, municipal, high court, supreme court).
See also, legislature, executive, legal system, legal precedent in the primer on public law and regulation.
Adapted from Bryan A. Garner (eds), Black’s law dictionary, 9th ed., West A. Thompson, 2009, ISBN: 978-0-314-19949-2