Wis. Stat. § 979.03
If a child under the age of 2 years dies suddenly and unexpectedly under circumstances indicating that the death may have been caused by sudden infant death syndrome, the coroner or medical examiner shall notify the child's parents or guardian that an autopsy will be performed, at no cost to the parents or guardian, unless the parents or guardian object to the autopsy. The coroner or medical examiner shall conduct or shall order the conducting of an autopsy at county expense, unless parent or guardian requests in writing that an autopsy not be performed. If the autopsy reveals that sudden infant death syndrome is the cause of death, that fact shall be so stated in the autopsy report. The parents or guardian of the child shall be promptly notified of the cause of death and of the availability of counseling services.
Wis. Stat. § 979.03