ISLAMABAD - The three-member UN inquiry commission constituted to investigate the assassination of former prime minister Benazir Bhutto will arrive in the third week of July to launch its probe on Pakistani soil. Chiles Permanent Representative for the United Nations, Heraldo Munoz, is heading the inquiry commission and the other two members are Marzuki Darusman from Indonesia and Peter Fitzgerald from Ireland. According to United Nations, the mandate of this body is to collect data and information related to the assassination of Benazir Bhutto on December 27, 2007 in Rawalpindi, Pakistan. The much awaited arrival of the UN team will be in the third week of next month and the official quarters here are now engaged in internal consultations on how to assist the international body and help it carry out a thorough probe into the killing of former prime minister, said a senior official here on Saturday desiring not to be named. He said the UN commission would formally start its work from July 1, as was announced by President Asif Ali Zardari a few days ago. However, its probe in Pakistan would commence later in the third week of July after its arrival. The official circles here attach great significance to the upcoming visit of the UN commission as its the first trip of this body to Pakistan, he said. The official said that the mandate of the commission was to carry out only probe into the gory incident of Benazir Bhuttos assassination and the punishment would de decided by the Pakistani government. He said the inquiry commission would only submit its investigation report to UN that would hand it over to Pakistani government, adding that Pakistan itself would make a decision about the punishment. The official said that the UN commission had prepared the list of persons that it could call for investigation but Pakistani government had full authority to permit or forbid the commission to access any Pakistani officer. He said the probe into the killing of Benazir Bhutto by the UN body would cost a total of $4 million out of which Pakistan would pay only $1.5 million while the remaining $2.5 million would be paid by United Kingdom, Middle East, Britain and some European countries.