LOS ANGELES — The Los Angeles County Sheriff’s Department said this week it will retest 4,000 DNA samples and open an internal investigation after learning that it used potentially flawed test ...

March 27 (UPI) --The Los Angeles County Sheriff's Department will retest more than 4,000 DNA samples after announcing it used a faulty testing kit for at least eight months. The sheriff's office ...

The manufacturer of the test kits notified the Los Angeles County Sheriff’s Department in August that many of the kits were likely defective, but it kept using them for several months.