Leaked documents penned by one architect of Islamic State (Isis) lay bare the militant group's plans to create a political entity that controls and regulates every aspect of its subjects' lives and has at its core a principal of murderous jihad.

Sources within the coalition against IS (Daesh) have made it clear the group's ability to seize, retain and expand its territory has made it a particularly effective and destructive force in the Middle East and beyond.

But as well as its plans for nation state on a perpetual war footing, documents leaked to the Guardian and translated in full by Aymenn Jawad Al-Tamimi, a research fellow at the Middle East Forum, have shown IS envisages an all-controlling province in Iraq and Syria regulating education and foreign relations and powered by a meticulously planned economy that would make Mao proud.

ISIS Child Killer Hostage
An Islamic State propaganda video appears to show a child executioner. YouTube

Islamic State on its use of child soldiers:

"Preparation camp for children:

"The camp includes Shari'a sessions in fiqh [jurisprudence] of doctrine and rulings, with special sessions in Islamic society and manners, and training on bearing light arms and the principles of use.

"Outstanding individuals are selected from them for security portfolio assignments, including checkpoints, patrols and the various Amniyat units [internal security units]"

Islamic State on education:

"The programs focused on glorifying the ruling authorities and discarding differences between sects, stripping Sunnis of their identity.

"Focusing on glorifying and eternalising the leaders and taking refuge in God and inserting them into hidden shirk [idolatry] through immortalising ephemeral, temporary personalities."

Abdeslam Salah arrest warrant
The international arrest warrant issued for Salah Abdeslam, the prime suspect in the Paris attacks File

Islamic State on the tracking of its fighters:

"The mujahid [soldier] remains in need of direction and tracking after his completion of the special training session for him, for spiritual direction is the foundation of his success in every matter he undertakes and the mujahid's direction in every stage will consist of reminding him of the aims of the Islamic State."

Islamic State on how to manage defeat:

"In the event of being broken, the direction should be on patience, reckoning and steadfastness on meeting the enemy while not heeding those having doubts and those who spread rumour and terror in the ranks of the soldiers."

Raqqa woman Syria
A woman wearing a niqab walks along a street in the Isis stronghold of Raqqa in Syria. Reuters

Islamic State on the economy:

"Officials must know about all means of operation and production like dealing in water, flour and livestock."

Islamic State on oil and gas:

"It is not allowed for a person who has no pledge of allegiance on his neck to the Caliph to invest in an oil or gas field or what has arisen from their trajectory, but it is allowed besides that to produce derivatives after buying the crude products from the fields of the Islamic State, just as it is allowed to sell and deal in them inside and outside the state."

Jihadi John
Jihadi John, whose real name is Mohammed Emwazi, who believed to have been killed in a drone strike became a poster boy for foreign jihadis Reuters

Islamic State on its foreign fighters:

"Thousands migrated to Syria to fight alongside the mujahideen, without their knowing the direction of any faction, its affiliation or private agendas."

Islamic State on foreign policy:

"A provision that the agreement should first be in the interest of the Muslims, not in the interest of the disbelievers."

Inside Sinjar
A woman cries after her family was prohibited from entering a Kurdish-controlled area after fleeing an Isis-held village near Sinjar John Moore/Getty Images

Islamic State on its borders:

"Divisions have also forbidden the Sunnis from the simplest of their rights while making the Nusayris masters of the sea, and the Shi'a in Iraq the kings of oil and the merchant pathways, and the Yezidi Kurds the sheikhs of the mountains while the Druze have become masters over the mountains overseeing Israel.

"Thus we protect the power of the Sunnis and strengthen its expansion and focal points, and then special teams can be deployed for fundamental change in the structuring of the regions that are subject to the rule of the Islamic State."

Should we cease using Islamic State, Isis or Isil and begin using 'Daesh'?

IS fighters and leaders hate the word - it's an Arabic acronym of "al-Dawla al-Islamiya fi Iraq wa ash-Sham" – meaning the Islamic State of Iraq and al-Shams – but when spoken Daesh sounds similar to the Arabic words translating to "the sowers of discord" (Dahes) or "one who crushes underfoot" (Daes). IS threatened "to cut the tongue of anyone who publicly used the acronym Daesh, instead of referring to the group by its full name".