I’m coming in halfway through this conversation, perhaps without correct context on prior discussions.
…what we’re you wearing, had you been drinking, were you being flirtatious or giving mixed signals, why were you walking home alone…no question is inherently wrong, but context is everything and in this context they are the wrong questions…
That cannot be stated for certain. You are interpreting the reason for those questions in a negative manner rather than in a positive manner.
In wanting to get witnesses, a police officer asking outside a nightclub “did you see a 5'6" brunette last night” will get a few laughs but nothing useful. Even showing a photo might not get much response. However, if she asks “did you see a brunette wearing a gold skirt with a bright pink blouse,” she may well find some more useful witnesses.
In asking “why were you walking home alone,” an officer can find out if there might have been some element of planning (“sorry, love, can’t take you home after all: my car’s broken down”) or a deliberate separating of one person from a group for nefarious reasons.
In the context of any crime reported, police should ask many questions. First to determine if a crime was committed, secondly to determine the circumstances of the crime, thirdly to apprehend the criminal. Just because the crime is sexual in nature does not mean this process should be relaxed: quite the opposite. That is not to say that in handling any personal assault, the police questioning, while thorough, should not also be as sympathetic as possible.
As Sherlock Holmes might say “there is no question that is wrong, there can only be a wrong conclusion reached from the answers.”