0 0 0 , ▁D ile ep ▁N air , ▁the ▁UN ▁cor ruption ▁watch dog , ▁wanted ▁to ▁determine ▁the ▁programme ' s ▁level ▁of ▁vulner ability . ▁Se van ▁and ▁UN ▁Deput y ▁Secretary - General ▁Louise ▁Fre ch ette , ▁rejected ▁any ▁such ▁investigation , ▁claim ing ▁that ▁it ▁would ▁be ▁too ▁expensive ▁to ▁be ▁worth while . ▁UN ▁Che f ▁de ▁Cab inet ▁I q bal ▁R iza ▁ordered ▁the ▁sh red ding ▁of ▁years ' ▁worth ▁of ▁documents ▁in ▁his ▁office ▁concerning ▁the ▁programme . ▁He ▁said ▁that ▁they ▁were ▁from ▁a ▁working ▁file ▁that ▁contained ▁copies ▁of ▁documents ▁received ▁by ▁his ▁office , ▁and ▁were ▁p urg ed ▁due ▁to ▁lack ▁of ▁space , ▁and ▁also ▁that ▁the ▁original s ▁were ▁held ▁elsewhere . ▁ ▁In ▁response ▁to ▁these ▁critic isms , ▁and ▁to ▁evidence ▁acquired ▁after ▁the ▁ 2 0 0 3 ▁invasion ▁of ▁Ira q , ▁accus ations ▁were ▁made ▁that ▁sk im med ▁prof its ▁were ▁being ▁used ▁to ▁buy ▁influence ▁at ▁the ▁UN ▁and ▁with ▁K of i ▁Ann an ▁himself . ▁An ▁investigation ▁cleared ▁Ann an ▁of ▁any ▁personal ▁wrong do ing . ▁ ▁Ad ul ter ated ▁food s ▁ ▁According ▁to ▁an ▁inter im ▁report ▁released ▁on ▁ 3 ▁February ▁ 2 0 0 5 ▁by ▁former ▁Federal ▁Reserve ▁chairman ▁Paul ▁Vol cker ' s ▁commission ▁( see ▁# Inv estig ations ▁below ), ▁much ▁of ▁the ▁food ▁aid ▁supplied ▁under ▁the ▁programme ▁" was ▁un fit ▁for ▁human ▁consumption