▁well ▁as ▁numerous ▁acts ▁of ▁violence ▁at ▁the ▁moment ▁of ▁their ▁physical ▁transfer . ▁The ▁ad ▁h oc ▁committee ▁of ▁exper ts ▁declared ▁in ▁ 2 0 0 4 ▁that ▁the ▁documents ▁should ▁be ▁returned ▁to ▁their ▁legit imate ▁own ers . ▁The ▁documents ▁were ▁finally ▁transferred ▁in ▁ 2 0 0 5 . ▁ ▁Background ▁The ▁orig ins ▁of ▁the ▁Civil ▁War ▁Archive ▁date ▁back ▁to ▁the ▁dec ree ▁which , ▁on ▁September ▁ 1 3 , ▁ 1 9 3 6 , ▁established ▁that ▁" all ▁properties ▁and ▁documents ▁belonging ▁to ▁the ▁political ▁parties ▁and ▁organizations ▁mentioned , ▁as ▁well ▁as ▁any ▁other ▁that ▁opposed ▁the ▁mov imiento ▁nacional ▁were ▁to ▁become ▁the ▁property ▁of ▁the ▁State ." ▁▁ ▁The ▁original ▁dec ree ▁was ▁supp lement ed ▁by ▁success ive ▁decre es , ▁such ▁as ▁that ▁of ▁April ▁ 2 0 , ▁ 1 9 3 7 , ▁which ▁set ▁up ▁a ▁counter - prop ag anda ▁unit , ▁the ▁Oficina ▁de ▁Investig ación ▁y ▁Pro pag anda ▁Ant ic om un ista ▁( O IP A ), ▁and ▁of ▁May ▁ 2 9 , ▁ 1 9 3 7 , ▁which ▁created ▁the ▁De leg ación ▁Nacional ▁de ▁As unt os ▁Es pe cial es , ▁charged ▁with ▁" re comp iling ▁documentation ▁regarding ▁sect s ▁operating ▁in ▁the ▁country ... ▁in ▁order ▁to ▁set ▁up ▁an ▁Archive ▁with ▁which ▁to ▁establish , ▁un cover ▁and ▁san ction ▁the ▁enemies ▁of ▁the ▁Pat ria ." ▁ ▁The ▁system atic ▁re