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The original item was published from 1/21/2021 2:24:24 PM to 8/25/2022 11:19:04 AM.

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Posted on: January 20, 2021

[ARCHIVED] MEDIA RELEASE ~ Burglary Investigations Reveals Illegal Marijuana Growing Operation


Irwindale, CA: On Monday, January 18, 2021, at about 8:48 A.M., Irwindale police officers responded to a burglary investigation in an industrial complex located in the 15500 block of Arrow Highway.

On arrival, our officers discovered an industrial unit within the complex had been broken into. Once inside the unit, the suspects broke through common interior walls to enter two adjoining units.  During the course of their investigation, officers detained two male adults found inside one of the units.  Officers also developed information leading them to believe an illegal Marijuana growing operation was taking place in two of the burglarized units.  

Members of the police department’s Detective Bureau responded and obtained a search warrant for the units in question.  The search warrant service led to the discovery of a large illegal Marijuana growing operation that included over 1500 live Marijuana plants.  Detectives also found the unit’s electrical system had been severely overload, creating a substantial fire risk, as well as the presence of a large amount of dangerous chemicals and fertilizers.  

David Tang, 37-years-old, and Calvin Tran, 29-years-old, both from El Monte, were arrested on felony narcotics-related charges.  They were booked at the jail and later released with citations due to COVID-19 jail restrictions.  Court dates for both suspects are pending.   

City of Irwindale Code Enforcement Officers and Building and Safety Inspectors continue to investigate violations of city ordinances and building safety codes, potentially resulting in additional administrative fines and penalties.

In addition to various state laws, the City’s Municipal Code prohibits commercial Marijuana activity within the city, including the planting, growing and cultivation of Marijuana, as well as the commercial possession, manufacturing, distribution, processing, storing, packaging, labeling, transportation, delivery, and sales of marijuana and marijuana products.  

Anyone with information regarding this investigation is asked to contact Detective Diego Cornejo at (626) 430-2290, email:

Photographs are available upon request. 

Download a printable copy of our Media Release

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Media Contact

Sergeant Rudy Gatto, Public Information Officer

Phone (626) 430-2245


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