By Police officers prepare to take position outside the residence of Pakistan's former Prime Minister Imran Khan, in Lahore, Pakistan, on Saturday, Aug. Chaudary/APPakistani police on Saturday arrested former Prime Minister Imran Khan at his home in the eastern city of Lahore after a court convicted him in an asset concealment case and handed him down a three-year prison sentence. "In Lahore, a group of pro-Khan lawyers reached his Zaman Park home and chanted slogans protesting his conviction and arrest