Hayek was also charged with carrying out terrorist activity and if convicted he could be sentenced to death.
Saqr later referred the legal case to the First Military Investigative Judge.
Harb had said that Hayek refused to appear before the investigative bodies because he is a member of Hezbollah’s security apparatus.
Harb escaped in July 2012 an assassination attempt after residents of a building in which his office is located at Sami el-Solh Boulevard in the Beirut district of Badaro discovered individuals trying to booby-trap the elevator.
March 14 held PM Nagib Mikati responsible for the wave assassinations in Lebanon starting with the attempted assassination of Lebanese Forces leader Samir Geagea last April, the attempted assassination of MP Harb and the assassination of Lebanon Internal Security intelligence chief Wissam al Hassan who was killed last October .
The current cabinet is dominated by the Iranian and Syrian backed Hezbollah militant group
A string of high-level assassinations struck Lebanon between 2004 and 2008, targeting figures who vocally opposed the Syrian government, including former Prime Minister Rafik Hariri who was killed in a powerful car bomb blast in February 2005.