这座城市毒品泛滥。
这一措施的确立是面对毒品的泛滥和侦查毒品犯罪的需要，在我国侦查史上史无前例，这一侦查措施的出台在当时的背景下，有其必要性和合法性。
Establishing this measure is the need of investigating drugs crimes which is unprecedented in the investigation history of our country. It has its necessity and legality under then background.
近年来，随着毒品在全球的泛滥，毒品问题成为非传统安全中一个复杂而重要的全球性社会问题。
In recent years, with the spreading of narcotics in the global scope, the narcotic problem has become a complicated as well as important global problem in the non-traditional safety.
毒品在全社会范围内严重泛滥，由于现有方法的局限性，还缺乏有效的毒品探测和识别的方法。
Due to the limitation of existing techniques, it is important for security departments to employ effective methods in the detection and identification of illicit drugs.
毒品在全社会范围内严重泛滥，由于现有方法的局限性，还缺乏有效的毒品探测和识别的方法。
Due to the limitation of existing techniques, it is important for security departments to employ effective methods in the detection and identification of illicit drugs.
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