An official custodian may deny disclosure or personal review of a record otherwise required to be disclosed if: The official custodian believes that disclosure is contrary to: The public interest; In a child abuse or neglect case, the best interest of a child who was allegedly subject to abuse or neglect, of the child's siblings, or of other children in the household, family, or care of the alleged abuser or neglector; or In an adult protective service case, the best interest of a vulnerable adult who was allegedly subject to abuse, neglect, self-neglect, or exploitation; and One of the following circumstances exists: A State or federal statute or regulation, a Maryland Rule of Procedure, or a court order gives the custodian discretion to deny disclosure, The official custodian determines, after consulting with counsel, that the record is subject to an attorney-client, attorney work-product, executive, or other privilege, The information requested consists of specific details of a research project conducted by a State agency, except that the name, title, expenditures, and availability date of the final project summary shall be disclosed upon request, or The record concerns a law enforcement investigation, or is an investigatory file compiled for a law enforcement, judicial, or prosecution purpose, to the extent permitted by State Government Article, §10-618, Annotated Code of Maryland.