An independent UN expert on Tuesday criticized Lebanon's handling of suspects detained in the assassination of former Lebanese premier Rafik Hariri. Leila Zerrougui said Lebanese authorities were arbitrarily detaining seven people more than two years in the bombing because they had yet to be indicted. "They have to be indicted," said Zerrougui, who heads the UN working group on arbitrary detention. She said that, otherwise, the seven detainees - four military officials and three civilians - should be released. They are being held for alleged involvement in the Feb. 14, 2005, bombing that killed Hariri and 22 others.