John Rosenthal has a very good round-up of the issues involving the mysterious Osthoff case:
...there is reason to wonder whether Osthoff’s burqa-wearing theatrics were not in fact a smokescreen put up to obscure links to Baathist circles and fellow-travelers. Evidence of what the German journalist and intelligence expert Erich Schmidt-Eenboom has recently described as “very good contacts” [partial translation here] between the German secret service, the BND, and the ousted Hussein regime makes this possibility all the more intriguing and troubling. It was the Osthoff case, and Osthoff’s admitted contacts with BND personnel, that first brought the current BND presence in Iraq to public attention.
Read it all.
My personal guess is, the German government paid millions of Euros as ransom money for Osthoff - and sent Hamadi to Lebanon as an additional gift.
The silence of the German government to the revelation that ransom money had been found on Osthoff following her liberation is deafening.