revealed.

'Never seen anything quite like this'

At the time, Detroit Police Chief James Craig reacted to the discovery of the boy with his own disbelief.

"I've never seen anything quite like this," Craig told CNN affiliate WXYZ-TV. "We found him barricaded in the basement, behind boxes and a large ... drum. There's no way he could have erected this makeshift area of concealment."

This week, Detroit Police Sgt. Michael Woody reiterated how surprised police were that the boy turned up in the basement. He told CNN, "It's possible" that investigators "didn't see" the boy while they searched the home from attic to basement.

The department is reviewing its procedures, he added.

A petition, signed Monday, and filed in Wayne County juvenile court describes allegations of abuse that the boy says he endured fromhis father and stepmother, Monique Arnel Dillard-Bothuell.

Neither have been charged; in fact, no one has been charged with anything in the case.

Blood found on PVC pipe

Wayne County child protective services opened an investigation of the family June 23 as FBI agents were looking into the boy's disappearance.

Petitions seeking state custody of Charlie and his younger siblings were filed this week. They say that on June 23, the father "disclosed physically disciplining Charlie V with a PVC pipe. An FBI search of the home produced the PVC pipe with which Charlie V was disciplined. It was disclosed that blood was found on the pipe."

On June 25, the documents say, the boy was found in the basement of the Bothuell home. He was taken to a hospital and a doctor