St. Louis

Disgraced Chesterfield Cop Busted In South St. Louis Meth Case, Feds Say

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Published on July 22, 2026
Disgraced Chesterfield Cop Busted In South St. Louis Meth Case, Feds SaySource: Chesterfield Police Department

Years after a hidden-camera scandal wrecked his law-enforcement career, former Chesterfield police officer David Cerna is back in the headlines, this time accused of dealing methamphetamine in south St. Louis. Federal authorities say Cerna is facing a meth trafficking charge, is being held in custody, and was caught on recordings talking about drug sales that allegedly included more than a quarter pound sold to a confidential source.

Agents arrested Cerna following a raid in early July at a south St. Louis location, and prosecutors say the covert audio and other items seized during that search form the backbone of the federal case.

According to FOX 2, FBI agents executed a search warrant at a south St. Louis address on July 14, which led to Cerna's arrest. Federal filings cited by the station list a single meth-trafficking count and describe evidence recovered during the raid that prosecutors later laid out in court documents. FOX 2 also reports that Cerna remains jailed while the new federal case moves ahead.

Prosecutors' allegations

"Federal court records allege Cerna was caught on covert audio recordings discussing his drug trafficking activities," according to FOX 2. Those filings say investigators are tying the recordings and other seized evidence to an allegation that Cerna sold more than a quarter pound of methamphetamine to a confidential source over roughly a month.

Court records also indicate that investigators plan to walk through the recordings and related trafficking claims at an upcoming hearing, where those details are likely to get their first full public airing.

Connection to earlier hidden-camera case

Cerna's latest legal trouble arrives after a separate scandal that first brought his name to public attention: he was identified as the officer who planted a hidden camera in the men's restroom at a Chesterfield Mobil On The Run and who reportedly recorded colleagues in a locker room. That earlier investigation, broken by local reporting and pursued by prosecutors, led to criminal charges, about a one-year jail sentence, and Cerna's placement on the sex-offender registry, as detailed by Reason.

That prior case still looms large in the region and has made the new federal allegations especially charged for residents and police accountability advocates who remember how the hidden-camera saga unfolded.

Legal context and what comes next

Federal methamphetamine trafficking charges carry heavy potential prison time and, depending on the amount of drugs involved and a defendant's prior record, can trigger multi-year mandatory minimum sentences, according to the Congressional Research Service. Cerna's case is still in its early stages. As investigations continue, prosecutors can seek additional counts, while defense attorneys typically focus on challenging covert recordings and questioning the role and credibility of confidential informants.

Judges sort those disputes in pretrial hearings, deciding which evidence jurors are allowed to hear if the case eventually goes to trial.

The arrest has resurfaced longstanding questions about officer conduct and accountability in the St. Louis area, as well as how investigators handle allegations when the person in the hot seat is a former cop. Cerna's next scheduled court appearance will give both sides a chance to argue over the recordings and other evidence, and federal authorities say the investigation remains active.