Thomas said in a statement that an extensive investigation "did not yield enough evidence supporting the filing of criminal charges against the officers involved."
"It is the decision of the prosecutor's office that we do not believe that the arresting officers are chargeable for their actions," Thomas said.
Some national black leaders have been pressing Saginaw authorities to take stronger action. The Revs. Jesse Jackson and Al Sharpton have come to Michigan have pressed for investigations and discipline against the officers.
Milton's mother, Jewel Hall, said she was "disappointed in the prosecutor's report finding that the actions of the six Saginaw police officers who so brutally shot and killed my son, Milton Hall, were justified," according to a statement a lawyer for the Rio Rancho, N.M., woman released to MLive.com.
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"We will continue to seek justice for Milton," she said.