Mr. Khan, a prominent human rights defender, works as an advocate in the Supreme Court of Bangladesh and acts as Secretary of Odhikar, a human rights organization based in Dhaka. 14 March 2011 An unknown person came to the main gate of the Odhikar office around 4.30 pm and made inquiries about Mr. Khan's family and the number of children he has to a family employee. 15 March 2011 Around 12.30 pm, Mr. Khan was followed by two persons on a motorcycle bearing the license number Dhaka Metro A-07-5535 from the Supreme Court, where he works as an advocate, to his house, which is located on the ground floor of the Odhikar office. In the afternoon, one of his family employees walked out of the gate around 5 pm to buy tea at a nearby tea stall when he found himself encircled by four unknown persons who requested information about the schedule of Mr. Khan's movements and his whereabouts. Two of them remained stationed all day outside the office of Odhikar, monitoring activities and staff movements. 16 March 2011 At 12.30 pm, a person who identified himself as Mohammad Tota Miah, Deputy Assistant Director (DAD) of the National Security Intelligence (NSI), visited the Odhikar office demanding the accountant to hand over all documents which Odhikar had submitted to the NGO Affairs Bureau. The accountant requested to see his identity card or an authorization letter, which caused the person to leave. Two other men stationed opposite from the Odhikar office, kept on monitoring the activities of Odhikar and its staff. 17 March 2011 Two persons blocked the way of another family employee, interrogating him about Mr. Khan. The employee told them not to ask questions he cannot answer and ducked into a nearby house until they left. This harassment to both Mr. Khan and Odhikar office started one day after Odhikar organized 3rd Annual Human Rights Defenders Conference in Dhaka on 12 and 13 March 2011. Mr. Khan suffered numerous acts of harassment, including monitoring and surveillance, from the NSI in the past because of his work with Odhikar.