El Monte police went to a home in the 3100 block of Granada Avenue at about 2 p.m. on 4 January 2018 after a WeTip hotline tip about a possible illegal marijuana growing operation.[1] Police found that the detached garage of the home had been converted into a hydroponic marijuana farm.[1] A 58-year-old man who was present at the home during the raid, Yongkun Liang of El Monte, was arrested on suspicion of illegal possession of marijuana and possession of marijuana for sales.[1]

Officers uprooted about 250 mature marijuana plants from the garage.[2] Officers also seized about 80 pounds of harvested cannabis, about 36.29 kg.[1] Detectives confiscated approximately 250 plants and 80 pounds of finished marijuana product, which police estimated had a street value of over $200,000.[1]

Police said that while California had legalized recreational marijuana, this type of growing operation in a residential community was illegal and would not be tolerated by the city of El Monte.[1] California law allowed adults to possess up to an ounce of marijuana for personal use and to grow up to six plants on their property.[1]