3. Wide interior of Lebanese parliament in session
4. Mid of Lebanese members of parliament (MPs)
5. SOUNDBITE (Arabic) Marwan Hamadeh, Lebanese Member of Parliament:
++Various cutaways of parliament during soundbite++
"No, Mr. Prime Minister Mikati, your friend Hariri wasn't just martyred. He was assassinated with two tons of explosives, along with him, your colleagues, your friends and your citizens. For them, you have a holy responsibility that will follow you, will chase you, forever and ever. The worst series of the worst crimes in the history of Lebanon is being treated with irreverence, without investigation, without question and without punishment, and now after 30 years it is on the precipice of being solved, and its executors, God willing, and those who ordered it, will be known."
6. Close of Prime Minister Najib Mikati
7. Mid of MPs
8. Set-up of UN defence official, Francois Roux
9. SOUNDBITE (French) Francois Roux, UN defence chief in Rafik Hariri case:
"My message to these individuals is the following: an arrest warrant has been issued against you today. The only person in the world who can get you out of this arrest warrant is a lawyer. So, make contact as soon as possible with a lawyer."
10. Cutaway of hands
11. SOUNDBITE (French) Francois Roux, UN defence chief in Rafik Hariri case:
"If the accused, or some of them, do not contact lawyers, then they will be tried in absentia. In that case, I myself have to assign lawyers on this list to defend the accused. But clearly those lawyers won't have contact with the accused, they won't know their points of view, and their job will certainly be more difficult."
Lebanon's parliament began three days of contentious debate on Tuesday, over the government's response to UN-backed indictments of four Hezbollah members in the 2005 murder of former prime minister Rafik Hariri.
In parliament on Tuesday, MP Marwan Hamadeh told Lebanon's new Prime Minister, Najib Mikati, that he had "a holy responsibility that will follow you, will chase you, forever and ever" to bring Hariri's killers to justice.
Hamadeh himself was injured in a car bomb explosion on October 1, 2004 that killed his driver and injured his bodyguard.
The blast is considered to have been the beginning of a series of assassinations of Lebanese politicians and journalists, one of which claimed the life of Rafik Hariri.
Tuesday's session in Beirut pitted Lebanon's rival factions against each other. Hezbollah and its allies are on one side, and a Western-backed coalition led by Hariri's son, Saad, is on the other.
On Monday, Saad Hariri accused Mikati of bowing to pressure from Hezbollah, which is refusing to turn over four members indicted by the UN-backed tribunal for the truck bombing that killed the Lebanese statesman in 2005.
Mikati fired back, suggesting Saad Hariri - himself a former prime minister - was trying to exploit his father's death for political gain and tear apart the country.
The implication of the Iranian-backed militant group Hezbollah in one of Lebanon's most stunning crimes threatens to bring a new and violent crisis in this Arab nation on Israel's northern border.
The Shiite militant group denies any role in the killing and vows never to turn over any of its members.
Also on Tuesday, the defence chief at the UN tribunal investigating the assassination of Rafik Hariri has urged the four Hezbollah members indicted in the slaying to come forward.
Francois Roux says the men will be tried in absentia if they stay in hiding.
"My message to these individuals is the following: an arrest warrant has been issued against you today. The only person in the world who can get you out of this arrest warrant is a lawyer. Make contact as soon as possible with a lawyer," Roux said.
Roux said that his office would help them prepare their defence.
The tribunal last week indicted the men in the 2005 assassination of Hariri, a prominent Sunni statesman.
Hezbollah's leader Hassan Nasrallah denies his Shiite group had any role in it and has vowed never to hand the men over.