London (CNN) -- A Pakistani woman went on trial in London Monday, charged with keeping a woman from Tanzania as a slave. Saeeda Khan, 68, is accused of overseeing the visa and travel arrangements that brought Mwanahamisi Mruke, 45 from her home in Tanzania to London in October 2006. When Mruke arrived in London, prosecutor Caroline Haughey told the jury, she was expecting to work as Khan's housekeeper. In fact, the prosecution alleged, Khan treated her "as a possession, not a person." Mruke regularly worked 18-hour days, and would be summoned by the sound of a bell to attend to Khan.
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A Pakistani-born woman is accused of keeping a slave in the United Kingdom
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Mwanahamisi Mruke worked for Saeeda Khan for years without pay, prosecutors say
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Mruke was not allowed to go home to see her dying parents, the jury hears
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Khan denies the charges
Towards the end of the morning session, @placeholder appeared as the trial's first witness.