If a State or local unit receives a report of present or past abuse or neglect of a vulnerable adult, an investigation shall be conducted in accordance with:

(1) § 7-1005 of the Health – General Article if the adult has a developmental disability as defined in § 7-101 of the Health – General Article;

(2) § 10-705 of the Health – General Article if the adult is in a facility as defined in § 10-101 of the Health – General Article;

(3) § 19-346 or § 19-347 of the Health – General Article if the adult is a resident of a related institution as defined in § 19-301 of the Health – General Article; and

(4) §§ 14-301 through 14-309 of the Family Law Article if the adult does not meet the criteria of item (1), (2), or (3) of this section.