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MANCHESTER, ENGLAND - FEBRUARY 26: A youth holds a 'Legal High' chemical pill on February 26, 2015 in Manchester, England. There has been a significant rise in the use of Legal Highs that are actually not against the law. They contain one or more chemical substances which produce similar effects to illegal drugs and can be purchased in local 'Headshops.' The 'highs' are not controlled under the Misuse of Drugs Act 1971 and can be purchased in many forms including pills, potions and herbs. (Photo Illustration by Christopher Furlong/Getty Images)

MANCHESTER, ENGLAND - FEBRUARY 26:  A youth holds a 'Legal High' chemical pill on February 26, 2015 in Manchester, England. There has been a significant rise in the use of  Legal Highs that are actually not against the law. They contain one or more chemical substances which produce similar effects to illegal drugs and can be purchased in local 'Headshops.' The 'highs' are not controlled under the Misuse of Drugs Act 1971 and can be purchased in many forms including pills, potions and herbs.  (Photo Illustration by Christopher Furlong/Getty Images)