Junior professorships in Germany are claimed to have, essentially, restrictions in terms of the speed of progress: https://de.wikipedia.org/wiki/Juniorprofessur says
In principle the employment before the graduation and as postdoc altogether must (in some federal states: may) amount to not more than six, in the medicine not more than nine years, whereby the regulations differ among the federal states.
The above text (due to "in principle", whatever it might mean) is somewhat imprecise.
1) Which laws/regulations, if any, improse such a restriction in the 16 federal states? (@Roland pointed to http://de.wikipedia.org/wiki/Landeshochschulgesetz, but I failed to find the corresponding passages, for Bavaria, Bremen, Hessen, NRW, and Saxony-Anhalt. Moreover, some passages in the corresponding laws say "bleiben außer Betracht". E.g., if for Hamburg we see "Behinderungsbedingte Überschreitungen dieser Zeiträume bleiben außer Betracht.", does it mean that impaired applicants get an extension?)
2) In practice, have there been any junior professorships without restrictions concerning the duration of the prior academic career?