Los Angeles

Rancho Cucamonga Home Red-Tagged After Illegal Grow Bust

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Published on June 22, 2026
Rancho Cucamonga Home Red-Tagged After Illegal Grow BustSource: Pinakpani, CC BY 4.0, via Wikimedia Commons

A normally quiet cul-de-sac in Rancho Cucamonga’s Breno Place neighborhood turned into a full-on crime scene after deputies say they uncovered a large illegal cannabis grow inside a single-family home. Investigators pulled out more than 1,000 marijuana plants along with several pounds of processed cannabis, and a later inspection turned up bootleg electrical work that officials say made the place too dangerous to live in.

According to LAmag, San Bernardino County Sheriff’s deputies served a search warrant at a residence on the 7000 block of Breno Place and seized 1,016 marijuana plants and about seven pounds of processed marijuana. The outlet reports that members of the county’s Marijuana Enforcement Team backed up local deputies during the operation. Authorities said no arrests had been announced and asked anyone with information to contact the Rancho Cucamonga station at 909-477-2800 or submit an anonymous tip to WeTip at 844-909-3006.

The Sheriff’s Gangs/Narcotics Division describes the Marijuana Enforcement Team as a multi-jurisdictional unit that goes after indoor and outdoor grows, illegal dispensaries and THC extraction labs, often teaming up with local patrol stations for search-warrant operations. The San Bernardino County Sheriff’s Department notes that those cases can require detailed evidence processing and coordination with other county units once a grow is shut down.

Code enforcement flags electrical work, fire risk

During a follow-up inspection, code enforcement officials found an electrical bypass and other unauthorized modifications that led them to red-tag the house as unsafe, as reported by LAmag. The sheriff’s department and building officials brought in Southern California Edison to evaluate potential hazards, since improvised indoor grow setups often overload wiring and increase fire risk for both the property and neighboring homes.

Investigation, evidence and next steps

Deputies say investigators are now cataloging evidence from the scene while code enforcement works through the red-tag and related public safety issues. The Sheriff’s media center publishes formal updates when charges or arrests are made, and agencies typically coordinate with the county district attorney’s office if investigators develop cases they believe can be prosecuted. The San Bernardino County Sheriff’s Department serves as the official outlet for those announcements.

How neighbors can report tips

Anyone with information about the operation is asked to contact the Rancho Cucamonga sheriff’s station at the phone number published in reports or to use WeTip’s anonymous reporting line and online form. WeTip is a nationwide anonymous tip service that forwards reports directly to local law enforcement partners.

The seizure and red-tag highlight the hazards that clandestine grow operations can pose to neighborhoods, from risky electrical alterations to heightened fire danger. County officials are urging residents to report suspicious activity to authorities instead of trying to check out a suspected grow on their own. Investigators say they will release more information as the probe continues and any charges are filed.