Kammala jumla mai zuwa: Arnold ya yi aiki a matsayin Shugaban Majalisar London na tsawon shekaru biyar. Ta kasance babbar mai magana da yawun kungiyar kwadago ta Majalisar Landan kan ilimi kuma Shugabar Kwamitin Ilimi na Majalisar Landan. Arnold a baya ya jagoranci kungiyar dabarun al'adu na Landan, yana taka rawa wajen kawo wasannin Olympics na 2012 da kuma
Wasannin Paralympic zuwa Landan. Ta kuma zauna a kwamitin bunkasa tattalin arziki da zamantakewar Majalisar kuma ta yi aiki a matsayin memba na Hukumar 'Yan Sanda ta Metropolitan.