Considering the lack of information, I would hazard a guess that there was either video proof that nothing occurred, or the woman who filed the report admitted she lied.
Police consider report false.
Wellington, March 12 - Police are treating a report of an attempted rape at a Lower Hutt railway station this morning as a false complaint.
A woman had told police that an attack by two men happened as she was about to enter a subway leading to Pomare station around 7am. Police closed down the station to the public until 7.45am.
However, police said tonight that they were now considering their options and were treating the report as false.