Police say several children who received the packets Monday went to the hospital as a precaution, but none of the packets were actually opened and all of the kids were released after being examined.
The girl's mother, 30-year-old Ashley Tull of Selbyville, was charged with child endangerment and maintaining a drug property. She was arraigned Monday and released on $6,000 bond. She did not immediately return a call left at a home listing Tuesday.
Police say the girl unknowingly brought the heroin to the center when she switched backpacks. Police say the backpack contained nearly 250 packets of heroin, all labeled "Slam."