After an investigation of a complaint against an Australian legal practitioner is completed, the Board may do any one of the following:

(a) hold a hearing if it considers that any matter which is the subject of an investigation is capable of amounting to unsatisfactory professional conduct;

(b) deal with the complaint in accordance with section 456 (Procedure for less serious complaint), if it considers that the subject matter of the complaint is capable of amounting to unsatisfactory professional conduct that is not sufficiently serious to warrant a hearing;

(c) make an application under section 464 (Applications to Tribunal) for the Tribunal to hear and determine any matter that the Board considers is capable of amounting to either unsatisfactory professional conduct or professional misconduct, or both;

(d) .  .  .  .  .  .  .  .  

(e) make an application to the Supreme Court under section 486 (Applications to Supreme Court) to hear and determine the matter, if it considers that the matter is capable of amounting to professional misconduct.