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3d police officer policeman character in uniform holding a usb thumb drive memory stick for data backup, 3d illustration render Stock Photo - Alamy
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Denver Police Department called in 12 local agencies for backup amid protests; non-lethal force was used by outside groups
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Asian American Woman Police Officer at Crime scene Calling for Backup on CB Radio Stock Photo - Alamy
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Police: Officer Calls For Backup While Watching Criminal Stock Photo - Image of calling, help: 123814682
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No Time For Backup: Police Increasingly Told to Confront Active Shooters – NBC Palm Springs – News, Weather, Traffic, Breaking News
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Boulder Police Officers didn't wait for backup at King Soopers, exactly what modern tactics teach - The Longmont Leader
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Internal memos show Madison police officers no longer free to 'call off' backup | Crime | madison.com
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