The Chief of the MPD, pursuant to subchapter I of Chapter 5 of Title 2 [§ 2-501 et seq.], shall issue rules to implement the provisions of D.C. Law 20-279, including rules: (1) To establish criteria for determining when an applicant has, pursuant to section 6 of the Pistols and Other Dangerous Weapons Act [§ 22-4506 ]: (A) Demonstrated a good reason to fear injury to his or her person, which shall at a minimum require a showing of a special need for self-protection distinguishable from the general