<P> A Royal Commission is a major ad - hoc formal public inquiry into a defined issue in some monarchies . They have been held in the United Kingdom, Australia, Canada, New Zealand, and Saudi Arabia . A Royal Commission is similar in function to a Commission of Enquiry (or Inquiry) found in other countries such as Ireland, South Africa, and regions such as Hong Kong . It has considerable powers, generally greater even than those of a judge but restricted to the terms of reference of the Commission . The Commission is created by the Head of State (the Sovereign, or his / her representative in the form of a Governor - General or Governor) on the advice of the Government and formally appointed by letters patent . In practice--unlike lesser forms of inquiry--once a Commission has started the government cannot stop it . Consequently, governments are usually very careful about framing the terms of reference and generally include in them a date by which the commission must finish . </P> <P> Royal Commissions are called to look into matters of great importance and usually controversy . These can be matters such as government structure, the treatment of minorities, events of considerable public concern or economic questions . Many Royal Commissions last many years and, often, a different government is left to respond to the findings . In Australia--and particularly New South Wales--Royal Commissions have been investigations into police and government corruption and organised crime using the very broad coercive powers of the Royal Commissioner to defeat the protective systems that powerful, but corrupt, public officials had used to shield themselves from conventional investigation . </P>

Who has the power to convene a royal commission
find me the text answering this question