Updated

A judge has dismissed manslaughter and child abuse charges against a social worker and her boss who were accused of failing to protect a 3-year-old Detroit boy who died.

Judge Kenneth King made the ruling Thursday after testimony about whether Child Protective Services worker Elaina Brown and her supervisor, Kelly Williams should face trial on the charges in Aaron Minor's death.

The Wayne County prosecutor's office says it is reviewing the decision for a possible appeal.

The charges against the social workers were rare, but not unprecedented.

Aaron's mother, Deanna Minor, was charged with murder in August after the boy's decomposing body was found in their apartment in June while she was in a hospital psychiatric unit. A judge found her incompetent to stand trial.