DETROIT -

A U.S. District judge dismissed a lawsuit on Thursday against Oakland County prosecutors filed on behalf of the mother of one of the Oakland County Child Killer victims.

Debra Jarvis, who filed the lawsuit last year, is the mother of Kristine Mihelich. Mihelich, who was 10 years old at the time, was one of four children found murdered during a 13-month period in Oakland and Wayne counties more than 30 years ago.

Read back: Child Killer victim's mother: The system has failed

Jarvis' suit sought records from the criminal investigation conducted by the Oakland County Prosecutor, the Oakland County Sheriff and the Michigan State Police. She claimed she had constitutional rights to the documents of investigations into the killing that had never been released.

The law enforcement agencies argued they had immunity from being sued in the matter.

Read back: Oakland County prosecutor wants lawsuit over Oakland County Child Killer case dismissed