; (F) individual who has a legal parent-child relationship with the respondent, including a stepparent-stepchild and grandparent-grandchild relationship; and (G) individual who is acting or has acted as the legal guardian of the respondent; (6) the term law enforcement officer means any officer, agent, or employee of the Federal Government or a State government, unit of local government, or Indian tribe (as defined in section 4 of the Indian Self-Determination and Education Assistance Act ( 25 U.S.C. 5304 )) authorized— (A) by law or by a government agency to engage in or supervise the prevention, detection, or investigation of any violation of criminal law; or (B) by law to supervise sentenced criminal offenders; (7) the term long-term extreme risk protection order or long-term order means an extreme risk protection order issued under subsection (d); (8) the term mental health agency means an agency of a State or local government or its contracted agency that is responsible for mental health services or co-occurring mental health and substance abuse services