Taghavi made the remarks on Monday on the sidelines of an exhibition in Mashhad, adding that the Khorasan Razavi Province Anti-Narcotics Police discovered clues about the smuggling of narcotics from the western provinces of the country to Mashhad during an operation.
He also said that the Islamic Republic has been actively fighting drug trafficking over the past three decades, despite its high economic and human costs.
The war on the drug trade has claimed the lives of many Iranian police officers over the past four decades.
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