Saqr Saqr has decided to seek a life sentence for Mohammad Hayek, accused of attempting to kill MP Butros Harb in July 2012 by planting a bomb in the elevator of his office building, The (Beirut) Daily Star reported Wednesday.
The device was discovered by authorities before it detonated.
Saqr said he has handed the matter over to a military judge who will issue an indictment against Hayek and refer the case to a military tribunal for trial.
Hayek remains at large.
Security sources say Hezbollah has refused to hand over one of its members.