LANSING (AP) -- Gov. Rick Snyder plans to sign bills that would ban so-called synthetic marijuana. A signing ceremony is planned for Tuesday afternoon in Lansing.

The substance, sold under trade names like Spice and K2, has been available in stores as a mix of dried herbs and spices sprayed with chemicals. It has been blamed for health problems and violent behavior, especially among young people.

 The bills would crack down on synthetic cannabinoids and products sometimes referred to as bath salts. The bills also allow the Department of Community Health to declare health dangers when other synthetic drugs pop up. They were recently approved by the state Legislature.

Some counties and communities already have acted on their own to ban synthetic marijuana.

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