For the purposes of subchapter X of Chapter 25 of Title 7, the term:
(1) "Extreme risk protection order" means an order issued, pursuant to subchapter X of Chapter 25 of Title 7, by a judge of the Superior Court of the District of Columbia prohibiting a respondent from having possession or control of, purchasing, or receiving any firearm, ammunition, registration certificate, license to carry a concealed pistol, or dealer's license.
(2) "Petitioner" means a person who petitions the Superior Court of the District of Columbia for an extreme risk protection order under subchapter X of Chapter 25 of Title 7 and is:
(A) Related to the respondent by blood, adoption, guardianship, marriage, domestic partnership, having a child in common, cohabitating, or maintaining a romantic, dating, or sexual relationship rendering the application of subchapter X of Chapter 25 of Title 7 appropriate;
(B) A sworn member of the Metropolitan Police Department; or
(C) A mental health professional, as that term is defined in § 7-1201.01(11).
(3) "Respondent" means a person against whom an extreme risk protection order is sought.