( CNN ) -- Scores of protesters gathered outside a Sudanese courtroom Tuesday as the trial of a woman who faces 40 lashes for wearing clothes deemed indecent was postponed . Lubna al-Hussein was told she had pants considered too tight and a blouse too transparent . Lubna al-Hussein , who says she was arrested for wearing pants that were too tight , faces a new trial date of September 7 , her attorney Nadil Adib said . The delay was to allow the judge to consult Sudan 's Foreign Ministry on whether al-Hussein is immune from the charges because she was formerly a U.N. employee , he said . Al-Hussein -- who writes for a newspaper and worked for the media department of the United Nations mission in Sudan -- resigned from her U.N. position to deliberately lose immunity and face the charges . She was `` disappointed '' with the court 's decision to delay her trial , Adib said . `` She wanted to have her case tried in order to clear her name and have the law announced unconstitutional , '' he said . Al-Hussein was arrested along with 18 other women on July 3 at a Khartoum restaurant after police burst in and checked women for their clothing . `` I do n't think she was targeted specifically , '' Adib said . `` They attack public and private parties and groups . They are called 'morality police ' and she was just a victim of a round-up . '' At the time of her arrest , al-Hussein said she was wearing pants that police deemed too tight , a blouse they said was too sheer . She said she was also wearing a hijab -- or headscarf . Protesters gathered outside the courtroom in Khartoum Tuesday to support al-Hussein , carrying banners and wearing headbands with the messages , `` No return to the dark ages '' and `` No to suppressing women . '' Others demanded an amendment to the country 's public order law which human rights activists say is vague on what constitutes indecent dress . Last week , U.N. Secretary-General Ban Ki-moon said he was deeply concerned about al-Hussein 's case . `` The United Nations will make every effort to ensure that the rights of its staff members are protected , '' Ban said . `` The flogging is against the international human rights standards . I call on all parties to live up to their obligations under all relevant international instruments . '' Al-Hussein told the British Broadcasting Corporation that she wants a public flogging to make a point about the treatment of women in Sudan . She even sent out 500 invitations to witness her lashings . `` I 'm not afraid from pain ... but flog is not pain , flog is ( an ) insult , insult to humans , insult to women , '' al-Hussein told the BBC . `` This happened in Khartoum and under the eye ... of media and all over the world ... to girl from Khartoum for only wearing trousers and sit in a restaurant , '' she said . `` I want people ( to ) imagine that . What can be happening to women in Darfur ? This is my message . '' CNN 's Errol Barnett and Elham Nakhlawi contributed to this report .
Lubna al-Hussein faces a new trial date of September 7 . Al-Hussein says she was arrested for wearing too-tight pants . The case has been controversial in Saudi Arabia because the woman is accused of adultery and could face execution if found guilty.