The announcement that Islamic Sharia law will be the basis of legislation in newly liberated Libya has raised concerns, especially among women, despite Islamists insisting moderation will prevail.
Interim leader Mustafa Abdel Jalil said on Sunday, during his speech to the nation in Benghazi to formally declare the country's liberation from the ousted regime of Muammar Qadhafi, that Sharia would be Libya's principal law.
"Any law that violates Sharia is null and void legally," he said, citing as an example the law on marriage passed during the slain dictator's 42-year tenure that imposed restrictions on polygamy, which is permitted in Islam.
"The law of divorce and marriage … This law is contrary to Sharia and it is stopped," Abdel Jalil said.
His comments have provoked criticism and calls for restraint both in Libya and in Europe, amid fears that the Arab Spring may give rise to a potentially intolerant Islamist resurgence.
Many Libyans awaiting Sunday's historic speech expressed surprise at the decision by the National Transitional Council (NTC) leader to mention the role of Sharia law in the new country before addressing such important issues as security and education.
"It's shocking and insulting to state, after thousands of Libyans have paid for freedom with their lives, that the priority of the new leadership is to allow men to marry in secret," said Rim, 40, a Libyan feminist who requested anonymity.
"We did not slay Goliath so that we now live under the Inquisition," she told AFP.
In his speech, Abdel Jalil also announced the introduction of Islamic banking in Libya in keeping with Sharia which prohibits the earning of interest, or riba in Arabic, that is considered a form of usury.
Adel Rahman al-Shatr, one of the founders of the center-right Party of National Solidarity, launched just last week, said it was premature for the NTC leader to speak about the policies of the new state.
"It is a subject that should be discussed with the different political groups and with the Libyan people," he said.
"These declarations create feelings of pain and bitterness among women who sacrificed so many martyrs" in the eight-month battle against Qadhafi loyalists, he added.
"By abolishing the marriage law, women lose the right to keep the family home if they divorce. It is a disaster for Libyan women."
Western leaders also responded swiftly to Abdel Jalil's comments, with EU foreign policy chief Catherine Ashton saying on Monday Libya's introduction of Sharia law must respect human rights and democratic principles.
Abdel Jalil, a respected former Qadhafi justice minister who distanced himself from the old regime, is seen as a pious man and a Sufi follower of Islam who is at odds with extremism.
He has already said that the new Libya would not adopt any extremist ideology, and sought to reassure the international community by stating on Monday that Libyans were moderate Muslims.
Nevertheless, Libya's Islamists are a rising force in the country's political arena, some of whom, such as Abdel Hakim Belhaj, the founder of the Al-Qaeda-linked but now-disbanded Libyan Islamic Fighting Group (LIFG), are expected to hold prominent positions.
After suffering decades of persecution by Qadhafi, they are also working hard to present themselves as proponents of tolerant, democratic values and policies.
"The rules and laws [in the new Libya] should take Islam as a basic reference," Islamist leader Sheikh Ali Sallaby, a supporter of Belhaj, told AFP.
He insisted that freedom, justice, equality and respect for human dignity should be enshrined in the new constitution, along with the peaceful rotation of power.
"We believe in the rights of others to show their programs to the people, and to let the people decide," said Sallaby, who was jailed for eight years during the 1980s in Tripoli's notorious Abu Salim prison.
"We also believe in the freedom of the press and the right to self expression. We believe that our religion accommodates these rights," he added.