nalysisforPr f f
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JohnE. Eck and Ronald V. Clarke
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with contributions by Gohar Petrossian
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,Thisfprojectfwasfsupportedfbyfcooperativefagreementf#f2008CK-WX-
K004fawardedfbyfthefOfficefoffCommunityfOrientedfPolicingfServices,fU.S.fDepartmentfoffJustice.fThef
opinionsfcontainedfhereinfarefthosefoffthefauthor(s)fandfdofnotfnecessarilyfrepresentfthefofficialfpositio
nforfpoliciesfoffthefU.S.
DepartmentfoffJustice.fReferencesftofspecificfagencies,fcompanies,fproducts,forfservicesfshouldfnotfbefcon
sideredfanfendorsementfoffthefproductfbyfthefauthor(s)forfthefU.S.fDepartmentfoffJustice.fRather,fthefrefere
ncesfarefillustrationsftofsupplementfdiscussionfoffthefissues.
ThefInternetfreferencesfcitedfinfthisfpublicationfwerefvalidfasfoffthefdatefoffthisfpublication.fGivenfthatfURLsf
andfwebsitesfarefinfconstantfflux,fneitherfthefauthor(s)fnorfthefCOPSfOfficefcanfvouchfforftheirfcurrentfvali
dity.
©f2013fCenterfforfProblem-OrientedfPolicing,fInc.fThefU.S.fDepartmentfoffJusticefreservesfafroyalty-
free,fnonexclusive,fandfirrevocableflicenseftofreproduce,fpublish,forfotherwisefuse,fandfauthorizefothersftofus
e,fthisfpublicationfforfFederalfGovernmentfpurposes.fThisfpublicationfmayfbeffreelyfdistributedfandfusedfforf
noncommercialfandfeducationalfpurposes.
ISBN:f 978-1-935676-55-3
Septemberf2013
,IntelligenceAn f
alysisforProbl f f
emSolvers f
JohnE. Eck and Ronald V. Clarke
f f f f f f
with contributions by Gohar Petrossian
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,