Two backpackers from Birmingham were allegedly raped in a hotel room they were sharing in New Zealand after their drinks were apparently spiked.
The women, who are aged 21 and 22, were allegedly raped by the same man, one after another, at the Auckland City Hotel.
According to toxicology reports, no traces of drugs were found in the women's blood samples, although high levels of alcohol were.
A father-of-three from Auckland has been arrested after he was identified from CCTV footage.
According to the police, the man was seen putting his arm around one of the victims as they walked down a hotel corridor and escorted her to her room.
It is believed the women had been in New Zealand for only a few days when they met the man, who was unknown to them, at the Auckland City Hotel's sixth-floor bar Fordes Front Bench.
They ordered two glasses of white wine and struck up a conversation with the barman during the evening, in mid-September last year.
The police said the man later invited them to go into the city for a drink, but they declined.
Four hours later one of the women fell ill while playing pool. She slumped against the bar unconscious and began vomiting.
She was helped back to her room by her friend and the barman.
Local police said the woman remembers nothing about the rest of the night until she woke up to find someone having sex with her.
In the meantime, her friend continued drinking downstairs and has only vague recollections of the rest of the night.
The women alerted the bar manager after the alleged attack and the police were called. The man was arrested a week later.
Details of the case have only been revealed now after a court order banning publication of the details – issued because the accused is involved in a separate child custody case – was partly lifted.
The women, who later went on to continue their holiday, may be asked to return to the country to testify at the man's trial at a date to be fixed.