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Sheriff's Office - Drug Task Force

Posted on: July 12, 2023

Three arrested, fentanyl and weapons discovered during HCDTF probation search

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On July 11th, 2023, Humboldt County Drug Task Force Agents and Officers with the Fortuna Police Department executed a probation search at the residence of Brian Andrew Coffman (Age 37) located in 1000 block of P Street in Fortuna. The HCDTF had received information that Coffman was traveling out of the area to purchase large quantities of fentanyl and then trafficking the fentanyl back to Humboldt County for the purpose of sales. Coffman was currently on felony probation with a search clause for narcotics sales and he had an active felony warrant for his arrest for narcotics sales. 

Upon arrival at Coffman’s residence, Agents located and detained Coffman without incident. inside the residence. Agents began clearing the residence and located two additional subjects attempting to hide themselves inside of a bathroom.  The two subjects were identified as Bianca Welton (Age 37) and Kenneth Anderson-Rose (Age 36). Both subjects were detained without incident. Anderson-Rose attempted to provide a false name to HCDTF Agents but was immediately identified due to Anderson-Rose having multiple contacts with the HCDTF. It was later confirmed that Anderson-Rose had a felony warrant for his arrest for narcotics sales. Welton had two felony warrants for her arrest for vehicle theft and PRCS revocation.

While clearing the scene, an adult female accompanied by two young children were also located inside the residence. After further investigation it was later determined that the adult female and two young children were residing with Coffman. Child Welfare Services was contacted and advised of the living conditions for the two young children. 

Once the scene was secure, HCDTF Agents searched the residence and located 3 ½ ounces of fentanyl, ¼ ounce of methamphetamine, digital scales, packaging material, metal knuckles, a large cannister of pepper spray, and approximately $8,000 in US Currency. All items were collected as evidence and the US Currency was seized as asset forfeiture. 

Coffman was arrested and transported to the Humboldt County Jail where he was booked for the following charges:

  • 11351 HS                        Possession of narcotics for the purpose of sales
  • 273a(a) PC                     Child endangerment 
  • 22810 PC                        Felon in possession of a tear gas weapon 
  • 21810 PC                        Possession of metal knuckles
  • Felony Warrant 

Anderson-Rose was arrested and transported to the Humboldt County Jail where he was booked for the following charges: 

  • 11351 HS                        Possession of narcotics for the purpose of sales
  • 148.9 PC                         Providing a false identity to a peace officer
  • Felony Warrant

Welton was arrested and transported to the Humboldt County Jail where she was booked for the following charges: 

  • 11351 HS                        Possession of narcotics for the purpose of sales
  • Felony Warrants                        

Anyone with information related to this investigation or other narcotics related crimes are encouraged to call the Humboldt County Drug Task Force at 707-267-9976.

COFFMAN Booking Photo
Brian Andrew Coffman Booking Photo | Humboldt County Correctional Facility
WELTON Booking PhotoBianca Welton Booking Photo | Humboldt County Correctional Facility
Kenneth ANDERSONROSE Booking PhotoKenneth Anderson-Rose Booking Photo | Humboldt County Correctional Facility
Drugs, metal knuckles, pepper spray seized during search


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