Why the all-caps for "adopted"? Because if there's no biological tie, having sex with one's step-daughter is okay?
Korean Soon Yi was only ten when her mother began keeping company with Woody Allen. The couple went on to adopt two more children and to have one bio-child of their own. Allen's relationship with Soon Yi, appropriately, would have been paternal.
Dylan Farrow is the daughter adopted by Mia and Woody who has accused him of sexual assault when she was 7. In 1992 this accusation was investigated. From CNN:
"A team of investigators from Yale-New Haven Hospital that was retained by the Connecticut State Police subsequently concluded Dylan had not been abused," according to an account in the Times, which covered the custody proceedings.
Acting Justice Elliott Wilk of State Supreme Court "said it was unlikely that Mr. Allen could be prosecuted for sexual abuse based on the evidence," the newspaper reported. "But while a team of experts concluded that Dylan was not abused, the judge said he found the evidence inconclusive."
Woody Allen's adopted daughter accuses him of assaulting her at age 7 - CNN.com
Whether Soon-Yi was ADOPTED or not, Allen's relationship with her was inappropriate.