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Sheriff Al Nienhuis

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Major Narcotics Investigation Results in Drug and Cash Seizure, Two Arrests

November 3, 2026
Drugs

Public Information Officer

pio@hernandosheriff.org

(352) 797-3689

On 10-30-2026, detectives with the Hernando County Sheriff’s Office Vice and Narcotics Unit and Special Intelligence Unit executed a residential search warrant at 3071 Gloria Avenue in connection with an ongoing narcotics trafficking investigation. 

The investigation began after Vice and Narcotics detectives received information identifying Nehemiah Mason, DOB/12-11-1989, as a significant supplier of methamphetamine throughout Hernando County. Over the course of several months, detectives conducted multiple undercover narcotics purchases from Mason, including transactions involving trafficking quantities of methamphetamine.

During the investigation, detectives identified Mason as residing at the Gloria Avenue residence with his girlfriend, Brenda Rogero Diaz, DOB/12-01-1993. Detectives also developed evidence indicating Diaz was aware of Mason’s narcotics trafficking activities. During one of the undercover transactions, Diaz was observed transporting Mason to a predetermined transaction location and remaining present while Mason delivered a trafficking quantity of methamphetamine.

On 10-30-2026, detectives executed a search warrant at the residence. After announcing their presence and receiving no response, detectives made forced entry into the home. Upon entering, detectives located Mason exiting a guest bedroom and took him into custody without incident. Diaz was also located inside the residence and taken into custody without incident. 

While securing the residence, detectives observed a large quantity of a crystal-like substance, later identified as methamphetamine, on the bathroom counter connected to the guest bedroom. Several empty plastic baggies were also observed around the toilet. Inside the adjoining bedroom, detectives located a substantial amount of U.S. currency, including two separate bundles containing approximately $20,000 each, along with additional loose currency. 

A subsequent search of the residence resulted in the discovery of numerous additional plastic baggies containing white powder and rock-like substances, later identified as cocaine and crack cocaine. Detectives also located two prescription-style bottles containing a purple liquid substance identified as promethazine with codeine. 

In total, detectives seized the following: 

1,594.6 grams (approximately 3.5 pounds) of methamphetamine

386.3 grams (approximately 0.85 pounds) of cocaine/crack cocaine

382.9 grams of promethazine with codeine

$46,327 in U.S. currency 

Following his arrest, Mason agreed to speak with detectives after being advised of his Miranda rights. During the interview, Mason admitted ownership of the seized methamphetamine, cocaine, and promethazine with codeine. Mason further admitted that he possessed the methamphetamine and cocaine for the purpose of selling them, while the promethazine with codeine was intended for personal use.

Mason also acknowledged that the entire $46,327 recovered from his bedroom represented proceeds from previous narcotics sales that he had been saving. Additionally, Mason admitted to attempting to destroy evidence by flushing methamphetamine down the toilet after hearing detectives announce their presence at the residence.

During the interview, Mason confirmed that Diaz was aware of his narcotics trafficking activities, although he stated that he did not believe she was directly involved beyond her knowledge of the activity.

Diaz was also interviewed after being advised of her Miranda rights. During her interview, Diaz admitted that she had been aware of Mason selling and storing illegal narcotics inside their residence for an extended period of time. 

Both Mason and Diaz were transported to the Hernando County Detention Center.

Nehemiah Mason was charged with:

Trafficking in Methamphetamine (3 counts)

Trafficking in Cocaine

Trafficking in Codeine

Possession of a Place/Structure/Conveyance for the Sale or Trafficking of a Controlled Substance (4 counts)

Tampering with or Destroying Physical Evidence

Sale of Methamphetamine (2 counts)

Possession of Methamphetamine with Intent to Sell (2 counts)

Unlawful Use of a Two-Way Communication Device (3 counts)

Possession of Drug Paraphernalia

Brenda Rogero Diaz was charged with:

Principal to Trafficking in Methamphetamine

Possession of a Place/Structure/Conveyance for the Sale or Trafficking of a Controlled Substance

This investigation resulted in the seizure of nearly 4.4 pounds of methamphetamine and cocaine, along with more than $46,000 in suspected narcotics proceeds, disrupting a significant source of illegal narcotics being distributed throughout Hernando County.

The Hernando County Sheriff’s Office remains committed to identifying and investigating individuals responsible for trafficking dangerous narcotics within our community and holding those involved accountable.

Hernando County Crime Stoppers / Anonymous Tips

If you have information on this case, please contact Hernando County Crime Stoppers.  You will remain anonymous! 

Hernando County Crime Stoppers can be reached by phone at 1-866-990-TIPS (8477) or **TIPS from a cell phone.  

You may also submit your tip via the internet at http://www.hernandocountycrimestoppers.com .

You will remain anonymous and also be eligible for a reward up to $5,000 cash!

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Last Updated 11/6/26, 1:18 PM