Federal regulators have been trying to crack down on the sale of designer drugs around the country. This week, Obama signed a law to make the sale of designer drugs illegal in the U.S. Many cities and states around the U.S. have banned certain chemical compounds in designer drugs to try to reduce the drugs' sale and possession, but it their effort is complicated by the fact that manufacturers can often change the chemical compounds of the drugs in order to keep the drugs legal.
California banned the sale and distribution last fall of the designer drugs, "bath salts" and fake pot, which is sold as herbal incense. The fake pot and bath salts are labeled as "not for human consumption," but they are purchased by users who want to achieve a high similar to meth or marijuana. People often take them because they believe the drugs will not show up on a drug test.