. ▁By ▁ 2 0 1 2 , ▁the ▁cost ▁of ▁the ▁system ▁bal lo oned ▁to ▁$ 7 0 0 mill ion . ▁ ▁The ▁Pr esto ▁roll out ▁on ▁the ▁T TC ' s ▁surface ▁trans it ▁fleet ▁have ▁been ▁mar red ▁with ▁ab norm ally ▁high ▁failure ▁rates ▁of ▁the ▁readers ▁themselves ▁and ▁cost ▁over run s . ▁A ▁T TC ▁position ▁paper ▁noted ▁that ▁fault y ▁Pr esto ▁card ▁readers ▁used ▁by ▁fare ▁inspect ors ▁on ▁the ▁proof - of - payment ▁street car ▁system ▁is ▁making ▁it ▁" diff icult ▁to ▁get ▁customers ▁to ▁comp ly ▁with ▁ins pe ctions " ▁and ▁cost ing ▁the ▁T TC ▁in ▁lost ▁fare ▁re venue . ▁ ▁A ▁June ▁ 3 , ▁ 2 0 1 7 , ▁story ▁in ▁the ▁Toronto ▁Star ▁first ▁reported ▁that ▁customers ' ▁Pr esto ▁travel ▁histor ies ▁were ▁provided ▁to ▁police ▁authorities ▁ 1 2 ▁times ▁in ▁the ▁previous ▁year , ▁with ▁a ▁war rant ▁having ▁been ▁required ▁for ▁only ▁two ▁of ▁those ▁dis clos ures ▁and ▁customers ▁typically ▁not ▁having ▁been ▁not ified ▁that ▁their ▁records ▁had ▁been ▁shared . ▁The ▁figures ▁were ▁confirmed ▁by ▁Met rol inx ▁in ▁later ▁reports , ▁stating ▁that ▁they ▁had ▁granted ▁ 1 2 ▁of ▁ 2 6 ▁requests ▁received ▁from ▁various ▁police ▁ag encies . ▁In ▁response ▁to ▁calls ▁for ▁reform ing ▁the ▁data ▁sharing ▁system ▁from ▁exper ts ▁and ▁trans it ▁r iding ▁advoc ates , ▁Met rol inx ▁launched ▁a ▁formal ▁review ▁of ▁its ▁priv