Olathe ? A trash-truck driver found a newborn girl dead in a garbage bin behind a strip mall, but police in this Kansas City suburb said it was not immediately clear whether the baby was stillborn or died after birth.

The driver found the girl shortly after noon Monday. Detectives later said they had found a 20-year-old Olathe woman who they think gave birth to the baby.

The woman was not in a hospital and appears to be physically healthy, said Johnson County Dist. Atty. Paul Morrison. She was not arrested.

Investigators think the girl was put in the trash bin Sunday. They were waiting for an autopsy to determine how the baby died.

Legislators in Kansas and Missouri have passed “Baby Moses” laws that let parents safely abandon their newborns at hospitals and fire stations.

The Kansas law, which was passed in 2000, lets parents legally abandon children up to 45 days after birth.

The official who accepts the baby is legally bound to try to identify the child’s mother, father and grandparents so both parents will know about the baby and so the child might later have access to a medical history.