Sec. 2. (a) Upon the receipt of each report under this chapter of known or suspected child abuse, the department shall contact the law enforcement agency in the appropriate jurisdiction.
(b) The law enforcement agency, with the department, shall conduct an immediate onsite investigation of the report if the law enforcement agency has reason to believe that an offense has been committed. The law enforcement agency shall investigate the alleged child abuse or neglect under this chapter in the same manner that the law enforcement agency conducts any other criminal investigation.