The prerogative power resides with the Executive. Prerogative powers are a set of powers and privileges that are traditionally held by the Monarch, but are now exercised by the Executive on their behalf. These powers include the power to make appointments, grant pardons, declare war, negotiate treaties, and issue proclamations. The Executive exercises these powers on behalf of the Monarch as part of their duties and responsibilities. The prerogative powers are an important aspect of the UK's unwritten constitution, and are subject to judicial review by the courts to ensure that they are exercised lawfully and within the limits of the law.