ISLAMABAD: Aleema Khan has challenged the alleged solitary confinement of her brother, PTI founder Imran Khan, before the Islamabad High Court (IHC), describing his detention conditions as unlawful and inhumane, it emerged on Saturday. The petition, filed through Barrister Salman Safdar, names the Adiala jail superintendent, the inspector general of prisons, the National Accountability Bureau (NAB) chairman, the Federal Investigation Agency (FIA) director general and the executive director of Pims as respondents. According to the petition, during a lawyers’ meeting held on April 8, it emerged that Imran had been kept in solitary confinement for 22 hours a day, while his wife, Bushra Bibi, was allegedly confined in isolation for 24 hours a day.