Well, I am no expert but at https://en.wikipedia.org/wiki/Lay_judge#Germany it states that in Germany "Lay judges are selected by a selection committee from lists that are passed by the municipal councils". Almost the same prosses as in Sweeden where "Municipal assemblies appoint lay judges for the district courts" http://en.wikipedia.org/wiki/Judiciary_of_Sweden#Lay_judges .
I believe that a German municipal council and a Swedish municipal assembly is basicly the same, and both are staffed with elected officials ( aka "politicians").