Police department employees failed to follow sound policies and procedures for evidence disposal.
That's according to results of a report that was released by City Auditor Jeff Litchfield yesterday.
Litchfield reached the same conclusion as a police department investigation into the improper destruction of evidence, using the same interviews.
The auditor's office reviewed 75-thousand cases being handled by the Fourth Judicial District Attorney's Office.
It found nearly 21,000 pieces of evidence in roughly 9,100 cases were destroyed from September 2004 through March this year.
The audit says employees should have received better training on the rules.
Last week, investigators said they found only seven actives cases affected by the evidence's destruction.
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