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����At present, the social effect on many people for human security guards don't know much, even have prejudices and think that security is a brief guarding, no technical content. In fact, after these years, security technology to prevent effectiveness industry now for civil air defense, by civil air defense of a single person and technology, all kinds of guard under escort, efficacy, and safety risk assessment for the integration of comprehensive security system, it also makes the auxiliary police security greatly improved, has become the order to help the public security organs to maintain social order of an indispensable social security strength.

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����After years of development, both operational plan, the number of practitioners, is still the social influence, is now running at the proper height. The security work, safeguard industry of developed countries not only big plans, high degree of specialization, staff number, and many influential famous security effectiveness.

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