SAN FRANCISCO -- Coast Guard Petty Officer 2nd Class Christopher Hartman, a maritime enforcement specialist stationed at the Maritime Safety and Security Team San Francisco, sits with his partner, Evy, before a K-9 explosive detection training event Dec. 14, 2010, on Alcatraz Island in San Francisco. Evy is a 4-year-old Belgian Malinois and German shepherd mix, explosive-detection dog. U.S. Coast Guard photo by Seaman Adam Stanton.
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