▁activities ▁became ▁the ▁subject ▁of ▁a ▁parliament ary ▁enqu iry ▁which ▁reported ▁in ▁ 2 0 0 6 , ▁by ▁which ▁time ▁she ▁was ▁becoming ▁a ▁prominent ▁member ▁of ▁the ▁Regional ▁Parliament ▁(" Land tag ") ▁of ▁Th uring ia . ▁In ▁May ▁ 2 0 0 6 , ▁her ▁un fit ness ▁to ▁serve ▁in ▁the ▁parliament ▁(" " Par lament sun wür dig keit ") ▁under ▁the ▁terms ▁of ▁§ 1 ▁of ▁Th uring ia ' s ▁" Re present atives ▁Ver ification ▁Law " ▁was ▁established . ▁She ▁remained ▁a ▁parliament arian ▁and ▁the ▁process ▁rolled ▁on . ▁In ▁July ▁ 2 0 0 9 , ▁Th uring ia ' s ▁constitution al ▁court ▁ruled ▁that ▁the ▁earlier ▁decision ▁had ▁been ▁un law ful ▁because ▁the ▁C riminal ▁Police ▁service ▁K 1 ▁department , ▁with ▁which ▁Le u ke feld ▁had ▁collabor ated , ▁was ▁not ▁express ly ▁identified ▁in ▁the ▁version ▁of ▁the ▁relevant ▁law ▁that ▁had ▁been ▁in ▁force ▁in ▁ 2 0 0 6 . ▁ ▁Between ▁ 1 9 9 1 ▁and ▁ 2 0 0 4 , ▁Le u ke feld ▁worked ▁for ▁the ▁regional ▁parliament arian ▁Gab rie le ▁Z immer ▁in ▁her ▁Su hl ▁constitu ency , ▁as ▁head ▁of ▁Z immer ' s ▁election ▁office ▁(" Die ▁Le iter in ▁ih res ▁Wahl kreis bü ros "). ▁ ▁During ▁ 2 0 0 2 / 2 0 0 3 , ▁she ▁successfully ▁completed ▁a ▁gradu ate ▁level ▁course ▁in ▁social ▁work ▁at