(1) Except as provided in section 2151.422 of the Revised Code or in an interagency agreement entered into under section 2151.428 of the Revised Code that applies to the particular report, the public children services agency shall investigate, within twenty-four hours, each report of child abuse or child neglect that is known or reasonably suspected or believed to have occurred and of a threat of child abuse or child neglect that is known or reasonably suspected or believed to exist that is referred to it under this section to determine the circumstances surrounding the injuries, abuse, or neglect or the threat of injury, abuse, or neglect, the cause of the injuries, abuse, neglect, or threat, and the person or persons responsible. The investigation shall be made in cooperation with the law enforcement agency and in accordance with the memorandum of understanding prepared under sections 2151.4210 to 2151.4224 of the Revised Code. A representative of the public children services agency shall, at the time of initial contact with the person subject to the investigation, inform the person of the specific complaints or allegations made against the person. The information shall be given in a manner that is consistent with division (I)(1) and rules adopted under division (L)(3) of this section and protects the rights of the person making the report under this section. A failure to make the investigation in accordance with the memorandum is not grounds for, and shall not result in, the dismissal of any charges or complaint arising from the report or the suppression of any evidence obtained as a result of the report and does not give, and shall not be construed as giving, any rights or any grounds for appeal or post-conviction relief to any person. The public children services agency shall report each case to the uniform statewide automated child welfare information system that the department of children and youth shall maintain in accordance with section 5101.13 of the Revised Code. The public children services agency shall submit a report of its investigation, in writing, to the law enforcement agency.