SUMMIT TWP — State police Tuesday arrested a township woman accused of leaving her 3-year-old son alone at their basement home littered with more than 100 empty bags of heroin and other drug contraband.

State police said they found the boy Aug. 26 by himself and sleeping in a bedroom at the house on Wilson Way in Summit Township.

The boy’s mother, Melissa Sue Wilbert, 27, later admitted she and her friend, Tanya L. Tyson, 24, of Clinton Township, had used heroin the previous night before leaving the home and her son unsupervised, according to court documents.

District Judge Lewis Stoughton arraigned both women on charges of child endangerment, reckless endangerment and possession of drug paraphernalia.

Wilbert and Tyson were placed in the Butler County Prison on $30,000 bail each following arraignment.

Police began investigating the case following a hit-and-run crash shortly before 9 a.m. Aug. 26 in the 300 block of Herman Road in Summit Township.

Troopers called for the wreck found a badly damaged pickup truck into a utility pole. No one was in or around the truck, which is owned by Wilbert’s grandfather, documents said.

Her grandfather informed police that Wilbert had taken his truck the night before and had not returned home. Police also learned Wilbert has been living with her son in the basement of her grandfather’s home.

Concerned for the boy’s welfare, troopers went to the house where they found him alone but unharmed, according to documents.

A search of the basement, police said, turned up 105 empty bags of suspected heroin, two syringes and two spoons,

While police were still there, Wilbert returned home. She admitted being involved in the hit-and-run but said that Tyson was driving the truck.

“She also stated that she and Tanya used heroin on the couch the night before this incident,” according to a police affidavit.

She acknowledged using four bags that night but claimed most of the empty bags that police found belonged to Tyson.

Preliminary hearings for both defendants will be held at 1:30 p.m. Tuesday at Stoughton’s office in Chicora.