▁the ▁Philipp ine ▁National ▁Police . ▁ ▁History ▁The ▁C riminal ▁Investig ation ▁and ▁D ete ction ▁Group ▁was ▁established ▁as ▁the ▁C riminal ▁Information ▁Service ▁whose ▁origin ▁traces ▁back ▁as ▁early ▁as ▁ 1 9 0 1 ▁shortly ▁after ▁the ▁establishment ▁of ▁the ▁Philipp ine ▁Const ab ul ary ▁when ▁the ▁Information ▁Section ▁was ▁established ▁as ▁mand ated ▁by ▁the ▁Section ▁ 2 , ▁Article ▁ 2 5 5 ▁of ▁the ▁Philipp ine ▁Commission . ▁In ▁ 1 9 2 0 ▁the ▁Information ▁Division ▁was ▁integrated ▁with ▁the ▁United ▁States ▁Army ▁Forces ▁in ▁the ▁Far ▁East ▁and ▁its ▁detect ives ▁participated ▁at ▁the ▁Battle ▁of ▁B ata an , ▁many ▁of ▁which ▁also ▁were ▁forced ▁to ▁particip ate ▁at ▁the ▁B ata an ▁Death ▁March ▁ ▁After ▁World ▁War ▁II , ▁the ▁Military ▁Police ▁Command ▁was ▁activ ated ▁in ▁lieu ▁of ▁the ▁Philipp ine ▁Const ab ul ary . ▁A ▁C riminal ▁Investig ation ▁Branch ▁of ▁the ▁G 2 ▁to ▁investigate ▁cr imes ▁and ▁maintain ▁peace ▁and ▁order . ▁This ▁division ▁remain ▁oper ational ▁after ▁the ▁independence ▁of ▁the ▁Philippines ▁from ▁the ▁United ▁States ▁in ▁July ▁ 4 , ▁ 1 9 4 6 . ▁ ▁In ▁ 1 9 5 3 , ▁the ▁Philipp ine ▁Const ab ul ary ▁was ▁integrated ▁to ▁the ▁Ar med ▁Forces ▁of ▁the ▁Philippines ▁and ▁a ▁Police ▁Affairs ▁Division ▁was ▁created . ▁A ▁C riminal ▁Labor atory ▁was ▁made ▁by ▁the ▁division ▁to ▁support ▁const ab ul ary ▁units ▁with ▁background ▁in ▁scientific ▁cr imin ology