Officials have shut down the Detroit police crime lab because of errors found in evidence from shooting cases.

Wayne County Prosecutor Kym Worthy announced Thursday that Mayor Ken Cockrel Jr. and Police Chief James Barren have closed the lab.

Worthy says Michigan State Police have found erroneous or false findings in 10 percent of 200 random cases. She says the lab was temporarily closed this spring after errors were found in evidence from a double slaying.

The crime lab operation will be turned over to the state police. Barren says the lab's commander will be removed and its 33 officers reassigned.

Worthy says past cases where lab findings were used will be reviewed. She is not sure how many years back those investigations will extend.