The AM/DM podcast: Why the county wanted four rapid DNA testing machines

By , Daily Memphian Updated: September 01, 2026 6:15 AM CT | Published: September 01, 2026 6:15 AM CT

In 2021, the Tennessee Bureau of Investigation’s West Tennessee crime lab moved from Memphis — its home of 20 years — to Jackson. 

At the time, the TBI director said that although Shelby County brought the organization, quote, “a lot of work,” Jackson was more central to all the TBI’s partners in the west.

Last month, Shelby County Mayor Lee Harris and District Attorney General Steve Mulroy announced the purchase of four new rapid DNA machines, giving local law enforcement the ability to turn DNA test results around in 90 minutes. 

Today, reporter Brandon LaGrone is here to talk about what this means for Memphis and Shelby County. 

Listen in. 

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Topics

AM/DM
Mary Cashiola

Mary Cashiola

Mary Cashiola has been a Memphis journalist for nearly two decades, beginning her career covering city government and local neighborhoods at the Memphis Flyer before being hired by Memphis Mayor A C Wharton’s administration. 

Before joining The Daily Memphian, she was the managing editor of the Memphis Business Journal, which was named one of the top 10 Best Designed Newspapers in the world by the Society of News Design while she was there. 

She also has a background in advertising, with a focus on higher education and the hospitality industry. 


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