| http://www.w3.org/ns/prov#value | - Included on the checklist are indicators such as admitting to being a gang member, having tattoos or markings, frequenting gang areas, affiliating with gang members and displaying gang hand signs or writing graffiti. </p><p>Validating gang members is a time-consuming process, with officers compiling a file on each person, including supporting materials such as photos, videos, field interviews and
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