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The POWER List: Matthew P. Diehr

Husch Blackwell, St. Louis

Matthew P. DiehrMatt Diehr’s work has led to novel white-collar cases in Missouri.

In 2015, Diehr helped secure a rare writ of mandamus from the 8th U.S. Circuit Court of Appeals, compelling a lower court to recognize the firm’s client as a Ponzi scheme victim. This cleared the way for the client to gain restitution as a federal financial crime victim.

A year later, he helped obtain what may be the first permanent injunction under the Defend Trade Secrets Act for Monsanto, which was embroiled in a high-profile corporate espionage and deceptive trade secrets case.

Recently, he won summary judgment for the National Association of Wheat Growers against the state of California. The state had sought to enforce a cancer-warning requirement for use of the herbicide Roundup.

Matt Diehr leads Husch Blackwell’s state attorneys general practice while working on its government compliance, investigations and litigation team.

Diehr joined Jenson, Bartlett & Schelp after earning his law degree from Saint Louis University in 2009. The firm absorbed into Husch in 2013. Matthew T. Schelp is now a federal judge in St. Louis while fellow POWER honoree Jeff Jensen returned to Husch after serving as U.S. Attorney for the Eastern District of Missouri.

The POWER List: White-Collar Defense 2022