▁trial ▁was ▁held ▁using ▁the ▁same ▁evidence ▁and ▁seven ▁of ▁the ▁eleven ▁men ▁were ▁found ▁guilty ▁of ▁the ▁murder ▁of ▁one ▁Ab original ▁child ▁and ▁h anged . ▁In ▁his ▁book , ▁Blood ▁on ▁the ▁W attle , ▁journalist ▁Bruce ▁E lder ▁says ▁that ▁the ▁successful ▁pro sec utions ▁resulted ▁in ▁p act s ▁of ▁silence ▁becoming ▁a ▁common ▁practice ▁to ▁avoid ▁sufficient ▁evidence ▁becoming ▁available ▁for ▁future ▁pro sec utions . ▁Another ▁effect , ▁as ▁one ▁contemporary ▁Sydney ▁newspaper ▁reported , ▁was ▁that ▁poison ing ▁Ab original ▁people ▁became ▁more ▁common ▁as ▁" a ▁sa fer ▁practice ". ▁Many ▁mass ac res ▁were ▁to ▁go ▁un p un ished ▁due ▁to ▁these ▁practices , ▁as ▁what ▁is ▁various ly ▁called ▁a ▁" con sp i racy ", ▁" p act " ▁or ▁" code ▁of ▁silence " ▁fell ▁over ▁the ▁kill ings ▁of ▁Ab original ▁people . ▁ 1 8 3 8 . ▁In ▁about ▁the ▁middle ▁of ▁the ▁year ▁at ▁G w yd ir ▁River . ▁A ▁" war ▁of ▁ext ir p ation ", ▁according ▁to ▁local ▁magistr ate ▁Edward ▁Den ny ▁Day , ▁was ▁w aged ▁all ▁along ▁the ▁G w yd ir ▁River ▁in ▁mid - 1 8 3 8 . ▁" A bor ig ines ▁in ▁the ▁district ▁were ▁repeatedly ▁purs ued ▁by ▁parties ▁of ▁mounted ▁and ▁armed ▁stock men , ▁assemble d ▁for ▁the ▁purpose , ▁and ▁that ▁great ▁numbers ▁of ▁them ▁had ▁been ▁killed ▁at ▁various ▁sp ots ". ▁▁ 2 8 ▁November ▁ 1