The Exchange may conduct an investigation if:
  (1) the Exchange has reason to believe that there is a possibility that any Relevant Rule has been contravened by a Relevant Person;
  (2) the Exchange receives a written complaint involving a Relevant Person;
  (3) the Authority so directs; or
  (4) the Exchange is of the opinion that the circumstances warrant it.
Added on 7 October 20157 October 2015.