Lubna would receive 40 lashes if found guilty of violating Sudan's indecency law, which follows the strict Islamic regulations.
Hussein was among 13 women arrested on Friday, July 3 in a raid by the public order police on a popular cafe in Khartoum. Ten of the women were fined and flogged while Hussein and two others decided to go to court.
Although being a UN staffer, Hussein should have immunity from prosecution yet she opted to resign to face the trial.
In a column published in the British daily, The Guardian on Friday, Sep 4, Hussein said her case was a showcase of repressive laws in a country with a long history of civil conflicts.
"When I think of my trial, I pray that my daughters will never live in fear of these police ... We will only be secure once the police protect us and these laws are repealed," she wrote.