ESI’s promotional material describes it as a “private school [that] provides training in executive protection, investigation and intelligence operations, including anti-terrorism.” Part of the privatized counter-terrorism and security industry, with many locations throughout Colorado, in 1990 Management Review described ESI as “the Harvard of bodyguard schools.’ For the most part, ESI instructors are ex-members of Special Forces, as well as former and current FBI, CIA, DEA, Secret Service, and local law enforcement agents; but other instructors have included editors of Soldier Of Fortune
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