
Because of California’s diverse culture and unique location, there are many problems affecting the state’s drug situation. Drugs, including cocaine, heroin, methamphetamine, and marijuana are smuggled into California from Mexico, with methamphetamine and marijuana being produced or cultivated in large amounts. San Diego and Imperial Counties remain the main transshipment area for various drugs, with cocaine, heroin, marijuana and methamphetamine being smuggled from Mexico. Most drug traffickers found by law enforcement are poly-drug traffickers instead of specializing in one kind of drug. Since September 11, 2001, more emphasis has been placed on cautiously screening people and automobiles at all California Ports of Entry into America from Mexico. This has forced traffickers to try other methods of trafficking their contraband into America, including utilizing tunnels that run beneath the border and more sophisticated concealed compartments in vehicles.
Los Angeles is a distribution center for all forms of illegal drugs, which are destined for other primary metropolitan areas throughout America, and locally. Increased security measures at Los Angeles International Airport have been effective in deterring drug smugglers from traveling via the airport. Although the northern half of California has an abundance of methamphetamine in more rural regions, heroin is still the main drug of abuse in San Francisco. Heroin and crack cocaine continue to affect Oakland, and methamphetamine remains in and around Sacramento.

Mexican trafficking organizations, connected closely to Colombian distributors, remain dominant over the wholesale cocaine trade. Notably, the Mexican traffickers continue to specialize in the cross-border transportation of cocaine by air, land and sea. Most of the cocaine destined for America continues to enter the U.S. by land conveyance via the Ports of Entry along the California/Mexico border. Generally, traffickers ship the cocaine to Los Angeles in vehicles with concealed compartments; then they offload the cocaine into stash houses. Cocaine is easily accessible throughout California with Los Angeles remaining one of the country’s biggest cocaine transshipment and distribution centers. Cocaine is also easily accessible in San Francisco and other regions of northern California.
Law enforcement agencies in California mainly apprehend Mexican black tar heroin throughout California and Mexican brown tar heroin to a smaller degree. Mexican black tar heroin is typically shipped into America in quantities of five pounds or less, but every now and then, law enforcement apprehends greater quantities. Further, Southeast Asian, Southwest Asian, and Colombian heroin apprehensions periodically occur throughout California. The rising accessibility of high purity heroin that can be snorted provides a new, younger population the opportunity to use heroin without a needle. According to drug treatment specialists, these new heroin users consume large quantities of heroin and become rapidly addicted. Law enforcement officials usually find ethnic West African and Southeast Asian nationals involved in the distribution and shipment of Asian heroin. California does not reflect any detectable heroin abuse in its Asian communities. Reports that high purity Colombian heroin is now accessible in the counties around Los Angeles is proven by the recent apprehension of 200 grams of Colombian heroin by law enforcement in Ventura County.