California to illegal pot shops: We're coming for you

California is planning to intensify its enforcement against the state's thriving illegal marijuana market, including launching an ad campaign Friday that urges consumers to seek out licensed shops with safe products.

The state has been under pressure by the legal industry to do more to stop the illicit pot economy, which in Los Angeles and other cities often operates in plain sight. According to some estimates, up to 80 percent of sales in the state remain under the table, snatching profits from legal storefronts.

The state's top cannabis regulator Lori Ajax said at an industry forum "We are going to start having a more aggressive enforcement stance to come after the illegal market."

Ads will be hitting social media sites and billboards promoting a state website where shoppers can quickly check if a shop is licensed — CApotcheck.com.

The campaign makes a simple argument: You don't know what you're getting if you buy illegal products.