Ms M's ordeal began when she was stopped at a checkpoint while travelling in the Sinai region and a man in plain clothes, who she believed to be a military officer, told her she would not be able to continue her journey, took her to a place where he said she could sleep and then raped her.
The following day she contacted the FCO and appealed for advice.
Later that morning when she went to report the attack to the tourist police she found herself in a room with a number of armed plain-clothes officers - a situation she described as "extremely intimidating".
She was told that in order to complete her complaint she would have to go to military headquarters, something she felt she had no choice but to comply with despite being reluctant to go.
Ms M said she was finally allowed out shortly before 3am so that she could try to obtain antiretroviral drugs, on the understanding she would return at 9am to complete her statement.
When she was also required to re-enact what happened when she was assaulted, including demonstrating the positions she had been forced into.
While Ms M was in telephone contact with the embassy she said it would have made a "huge difference" it she had be told that an official could actually have been with her.
More top news
A young mother has accused an Uber driver of attacking her after a row over making two drop-offs.
Manchester City's owners have sold a 13 per cent stake in the club's parent company to Chinese investors.
The Bank of England warns lenders they must set aside cash for when the next crisis hits - but it could lead to rising rates for borrowers.