(a) the Exchange is satisfied that any Rule Violation or violation of any other relevant applicable laws and regulatory requirements relating to the regulation of markets and licenced entities has been, or may have been committed;

(b) the Exchange receives a complaint involving any Member, Approved Trader or Registered Representative or any Member's director, officer, employee or agent;

(c) there is a dispute between Members, Approved Traders or Registered Representatives in connection with trading on any market; or

(d) in the Exchange's opinion, having regard to its obligation to maintain a fair, orderly and transparent market, the circumstances warrant an investigation.