45 C.F.R. § 1326.25
(a) Pursuant to sections 143(a)(2), (A)(i), (B), (I), and (J) of the Act, and subject to the provisions of this section, a Protection and Advocacy (P&A) System, and all of its authorized agents, shall have access to the records of individuals with developmental disabilities under the following circumstances:
(2) In the case of an individual to whom all of the following conditions apply:
(3) In the case of an individual, who has a legal guardian, conservator, or other legal representative, about whom a complaint has been received by the system or, as a result of monitoring or other activities, the system has determined that there is probable cause to believe that the individual with developmental disability has been subject to abuse or neglect, whenever the following conditions exist:
(b) Individual records to which P&A systems must have access under section 143(a)(2), (A)(i), (B), (I), and (J) of the Act (whether written or in another medium, draft, preliminary or final, including handwritten notes, electronic files, photographs or video or audiotape records) shall include, but shall not be limited to:
(2) Reports prepared by a Federal, State or local governmental agency, or a private organization charged with investigating incidents of abuse or neglect, injury or death. The organizations whose reports are subject to this requirement include, but are not limited to, agencies in the foster care systems, developmental disabilities systems, prison and jail systems, public and private educational systems, emergency shelters, criminal and civil law enforcement agencies such as police departments, agencies overseeing juvenile justice facilities, juvenile detention facilities, all pre- and post-adjudication juvenile facilities, State and Federal licensing and certification agencies, and private accreditation organizations such as the Joint Commission on the Accreditation of Health Care Organizations or by medical care evaluation or peer review committees, regardless of whether they are protected by federal or state law. The reports subject to this requirement describe any or all of the following:
(c) The time period in which the P&A system must be given access to records of individuals with developmental disabilities under sections 143(a)(2)(A)(i), (B), (I), and (J) of the Act, and subject to the provisions of this section, varies depending on the following circumstances: