A 9-year-old North Miami Beach boy who was found wandering the streets last month naked and emaciated is gaining weight and regaining his health, state child welfare administrators told a judge Wednesday.

What is less clear: How the youngster came to weigh only 35 pounds though he was under the care of doctors, mental health therapists and the Department of Children & Families.

State child protection records released to The Miami Herald Wednesday show DCF closed an investigation into the boy’s welfare 48 days before he was picked up by police. “None of the children,” the report said, “were observed with any visible signs of abuse [or] neglect.”

Since the youngster was found by police Jan. 30, his plight has raised questions about whether medical, psychiatric and child welfare authorities did enough to protect him.

Miami-Dade Circuit Judge Cindy Lederman, a 20-year veteran of child welfare court, said the boy looked like a concentration camp survivor in a snapshot that DCF administrators gave her.

DCF administrators, however, have maintained that there is no evidence that father Edward Bailey or mother Marsee Strong had mistreated their children, although both were charged with aggravated child abuse after the discovery of their wandering, stick-thin son. Strong, DCF has said, had called the agency herself seeking medical care for the boy, who had been chronically underweight though he often stole food from the garbage or from other students at school.

“There has never been, in the last two years, an allegation that the parents have abused, abandoned or neglected the children,” DCF Regional Administrator Esther Jacobo told a television reporter.

DCF’s history with the family began in 2002, when a physical abuse allegation led the department to remove Strong and Bailey’s six children. The youngsters were returned to the parents two years later, though the child welfare court retained jurisdiction over the case. Detailed records of DCF’s five prior reports on the family were removed from documents provided to The Herald Wednesday. Lederman ordered DCF to provide her with all 776 pages of the documents, without redactions. She said she may release some of the additional records to the newspaper later.

DCF had joined The Herald last week seeking permission from the judge to release some of the child welfare records.

The documents show DCF’s most recent contact with the family before the wandering incident began on Dec. 6 at 4:27 p.m. when the state’s hotline received a report that the 9-year-old “needs immediate help.”

“He is psychotic and hears voices,” the report said. “He eats off the floor and from the garbage. He steals people’s food. He is being fed, but he says he is unable to get full.”

“Mom is stressed, concerned and worried,” the report added.

The hotline report was classified as a “special conditions” case, meaning the DCF investigator was asked to determine whether the agency could help the family — not whether there was evidence that the child was being abused or neglected.

Strong told the investigator she had asked the school for permission to send snacks for the boy, but school administrators would not allow it.

On Dec. 13, DCF closed the case, saying the boy appeared to be well-cared for, and was seeing a mental health therapist to treat his psychiatric disorder.