They are acting in complete accord with Islamic law. Here is a salient passage on this issue from a Shafi’i manual of Islamic law:
When an adult male is taken captive, the caliph considers the interests … (of Islam and the Muslims) and decides between the prisoner’s death, slavery, release without paying anything, or ransoming himself in exchange for money or for a Muslim captive held by the enemy. (Umdat al-Salik o9.14)
A revered Islamic jurist, Al-Mawardi, agrees with ‘Umdat al-Salik:
As for the captives, the amir has the choice of taking the most beneficial action of four possibilities: the first, to put them to death by cutting their necks; the second, to enslave them and apply the laws of slavery regarding their sale or manumission; the third, to ransom them in exchange for goods or prisoners; and fourth, to show favor to them and pardon them. (Al-Ahkam As-Sultaniyyah (The Laws of Islamic Governance), 4.5)
The Islamic State group has set a demand of a $30 million ransom for the release of hundreds of Christian hostages in their captivity in Syria.
The terrorist organization is demanding up to $100,000 per individual, according to a report over the weekend from Fox News. The group captured between 250-300 Christians on February 23 in the Northern Hasaka province of Syria, an area native to the country’s Christian population.
The demands came during ongoing talks between the Assyrian leadership and ISIS fighters. Third-party Syrian Sunni Muslims are reportedly brokering the talks between the two sides. A total of 23 hostages have been released to date. Reports further indicate that ISIS is using these Christians as human shields in military confrontations.
“They know we cannot come up with this kind of money, so they are hoping other groups and countries will come up with the money,” FOX quoted an Assyrian official as saying….