I was wondering if there was a merging of West and East German laws and institutions. Or if after reunification the West German laws and institutions started applying in East Germany as well.
Basically, the west absorbed the east. Here's several links to similar questions while someone qualified answers.
https://www.reddit.com/r/AskHistorians/comments/33jv57/as_a_westerner_i_have_tended_to_think_about/ (u/llamastingray)
https://www.reddit.com/r/AskHistorians/comments/3f4ljm/during_german_reunification_what_happened_to/ (u/cavetroglodyt)