Company officials created false documents, such as invoices, customer checks and account statements to verify business activity that never occurred or existed.

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State reinforcement of federal penalties for providing false information when buying a gun, running background checks on buyers at gun shows, allowing local discretion to police when issuing concealed-carry permits, requiring purchase permits for handguns and allowing municipalities to set their own gun laws are all associated with lower gun-trafficking rates.

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False alarms lead to "complacency" among businesses and prevent vital safety checks, crews said.

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