(CBS) — A troubled Cook County mother was jailed in Memphis after allegedly kidnapping her small child for the second time, and Sheriff Tom Dart was left scratching his head.

“I mean I don’t even know where to start with this,” Dart said at a news conference Friday.  “This so clearly was missed on so many different levels.”

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It began when 32-year-old Taneil Curtis allegedly abducted her baby Nov. 7 during a state-supervised visit in South Holland. Dart says that abduction was never reported by the supervisor — despite warrants being out for Curtis’s arrest and a previous abduction of the same child.

Also, Curtis’s parental rights for three other children had been terminated.

“How is it you are missing all of these things here?” Dart asked.

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Curtis apparently fled to Memphis with her non-registered sex-offender boyfriend Kirk Alexander.

She and her baby were located Friday morning in Memphis hiding in a bush. Curtis was in custody there.  Alexander is in custody in Cook County.  The baby is now en route to Chicago with two investigators.

Dart wrote a letter to Governor Quinn calling on an audit and investigation into the Illinois Department of Children and Family Services. He said in part, “Our investigation revealed systemic failures.”

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Dart credits numerous law enforcement agencies and his their dogged detective work with finding the 21-month-old.

Brad Edwards