The Dane County Narcotics & Gang Task Force is putting area retailers on notice after seizing more than $60,000 worth of an illegal marijuana-like drug being sold at 10 area gas stations and shops. They also want the public ? including parents ? to know that federal and state laws prohibit the possession or sale of so-called synthetic cannibinoids, which are marketed as incense. Also known as “Spice” or “K2,” the chemical-laden plant substances are usually smoked in joints or pipes, and can cause heart palpitations, strong hallucinations and amnesia as well as feelings of euphoria, said UW-Madison police Det. Carol Kashishian.