Chino Hills is a city of approximately 79,000 residents, located in southwestern San Bernardino County, California, near Yorba Linda. The city borders Los Angeles County on its northwest side, Orange County to its south, and Riverside County to its southeast. Prostitution and sex trafficking activity have been well-documented in the city and surrounding communities, and in unincorporated areas of San Bernardino County.  This activity and the problems and ancillary crimes it generates results in complaints to law enforcement agencies from residents and businesses. Among the more serious crimes associated with the local commercial sex market is child sex trafficking.

Consumer level demand provides the revenue stream for all prostitution and sex trafficking, and has therefore been targeted by local law enforcement agencies (as well as collaborating state and federal agencies) as a strategy for prevention and response.  For example, the Chino Hills Police Department and the San Bernardino County Human Trafficking Task Force conducted a web based reverse sting in September, 2018 to identify and apprehend local sex buyers driving the prostitution and sex trafficking markets.  Twenty-one men responding to online advertisements to meet prostitutes at a hotel on the Chino and Chino Hills city borderline, and were arrested. The name of the hotel was not released by police, nor were the names, cities of residences or ages of those arrested. All 21 men were booked into the West Valley Detention Center in Rancho Cucamonga on charges of solicitation for prostitution.