The search for an inmate who has not returned to the Zweibrücken prison from a leave of absence continues.
"But there are specific indications where the woman can be," said a police spokesman on Saturday.
The 55-year-old convicted of community murder should have returned on Thursday afternoon after four days of imprisonment.
Zweibrücken - The search for the woman began on Friday.
She has been detained since 2006 and should have been released in February after serving a life sentence.
Because of her previous place of residence, she could also be in Saarland.
However, it cannot be ruled out that she may have gone abroad.
dpa