NBC News was among several media organizations to obtain a trove of recruitment forms from a man who claims to be a disillusioned ISIS fighter who recently defected.
Part of one of the leaked ISIS documents. Alongside an ISIS logo, it reads: "IN THE NAME OF ALLAH THE MOST GRACIOUS MOST MERCIFUL, THE ISLAMIC STATE IN IRAQ AND THE LEVANT, GENERAL BORDER ADMINISTRATION, MUJAHID DATA." (Photo courtesy: NBC)
The questions start off mundane -- name, nickname, date of birth, education -- and then shift to the more sinister.
Fields ask about previous fighting experience, blood type, special skills, level of obedience and whether the applicant is interested in fighting or becoming a suicide attacker.
The forms also ask for "countries traveled" to clarify the route to ISIS' caliphate and who can vouch for the recruit.
RELATED: Previous incidents involving ISIS
ISIS beheading incidents and hostages
Leaked ISIS personnel files paint picture of group's recruits
A screen grab from a video posted to YouTube by ISIS that claims to show journalist James Foley, who was abducted in 2012 while covering the Syria civil war, being beheaded.
GlobalPost Journalist James Foley talks about being held by the Libyan Government. Foley was later abducted in Syria and a video by Islamic State militants was released in 2014 that purported to show his killing by the militant group.
(Photo by Jonathan Wiggs/The Boston Globe via Getty Images)
Lebaneses carry the funeral of Lebanese soldier Ali al-Sayyed (28) who kidnapped by Islamic State and the al-Nusra Front members and killed by Islamic State members, in Akkar, Lebanon on 3 September, 2014.
(Photo by Mahmud Saleh/Anadolu Agency/Getty Images)
Execution of Steven Sotloff by Jihadi John of ISIS. In August 2013, Sotloff was kidnapped in Aleppo, Syria, and held captive by militants from the Islamic State of Iraq and the Levant. Jihadi John (Mohammed Emwazi, born August 1988) a British man who is thought to be the person seen in several videos produced by the Islamic extremist group ISIL showing the beheadings of a number of captives in 2014 and 2015.
(Photo by Universal History Archive/UIG via Getty Images)
The mother (C) of Lebanese soldier Abbas Medlej, who was beheaded by Islamic State militants in Arsal, mourns in his hometown in Ansar, south Baalbak September 7, 2014. Islamic State militants have beheaded the captive Lebanese soldier, images published on social media showed on Saturday, the second Lebanese soldier to be killed in captivity by the group since it raided a Lebanese border town last month.
A masked, black-clad militant, who has been identified by the Washington Post newspaper as a Briton named Mohammed Emwazi, stands next to a man purported to be David Haines in this still image from a video obtained from SITE Intel Group website February 26, 2015. The "Jihadi John" killer who has featured in several Islamic State beheading videos is Emwazi, a Briton from a middle class family who grew up in London and graduated from college with a degree in computer programming, the Washington Post newspaper said. In videos released by Islamic State (IS), the masked, black-clad militant brandishing a knife and speaking with an English accent appears to have carried out the beheadings of hostages including Americans and Britons. The Washington Post said Emwazi, who used the videos to threaten the West and taunt leaders such as President Barack Obama and British Prime Minister David Cameron, was believed to have travelled to Syria around 2012 and to have later joined IS. British government sources and the police refused to confirm or deny the report, citing a live anti-terrorism investigation, a position mirrored by a spokeswoman for Cameron.
(REUTERS/SITE Intel Group via Reuters TV)
A man makes the victory sign behind a picture of Herve Gourdel, the hiker beheaded by Algerian militants linked to the Islamic State group during a demonstration in support of Kurdish forces fighting against the Islamic State (IS) in Syria on October 2, 2014 in Marseille, southern France.
(BERTRAND LANGLOIS/AFP/Getty Images)
Screen shot from an Internet video released Friday that purports to show an ISIS militant beheading British aid worker Alan Henning, who had been taken hostage by the extremist group.
The order of service for the memorial service for murdered British aid worker Alan Henning at Eccles Parish Church on November 22, 2014 in Manchester, United Kingdom. The 47-year-old taxi driver was captured in December while delivering food and supplies to Syrian refugees and was murdered by Islamic State (IS) militants in Syria.
(Photo by Andy Kelvin - WPA Pool/Getty Images)
Yellow ribbons for murdered British hostage Alan Henning, are attached to trees in the town centre of Eccles, north west England on October 4, 2014. Britain reacted with horror on Saturday to the beheading of hostage Alan Henning, who many had dared to hope might be spared after a cross-community appeal for his release. Prime Minister David Cameron led tributes to the 47-year-old taxi driver who went to the region as a volunteer to deliver aid and whose death was announced by Islamic State jihadists in a video released late Friday.
(OLI SCARFF/AFP/Getty Images)
A man walks past screens displaying a television news programme showing an image of Kenji Goto, one of two Japanese citizens taken captive by Islamic State militants, on a street in Tokyo January 25, 2015. Japanese Prime Minister Shinzo Abe on Sunday called the apparent killing of Japanese captive Haruna Yukawa by Islamic State militants "outrageous and impermissible," and again called for the group to release Goto, the second Japanese national they are holding. The words on the screen read "Japanese hostage incident" (top L) and "a still image posted on YouTube" (top R).
Jordanian youth gather for a candle light vigil to condemn the killing of the two Japanese hostages, Haruna Yukawa and Kenji Goto, by the Islamic State (ISIS) group, in a gesture showing solidairity with Japanese people, in front of the Japanese embassy on February 2, 2015 in Amman, Jordan.
(Photo by Jordan Pix/Getty Images)
Men in orange jumpsuits purported to be Egyptian Christians held captive by the Islamic State (IS) kneel in front of armed men along a beach said to be near Tripoli, in this still image from an undated video made available on social media on February 15, 2015. Islamic State released the video on Sunday purporting to show the beheading of 21 Egyptian Christians kidnapped in Libya. In the video, militants in black marched the captives to a beach that the group said was near Tripoli. They were forced down onto their knees, then beheaded. Egypt's state news agency MENA quoted the spokesman for the Coptic Church as confirming that 21 Egyptian Christians believed to be held by Islamic State were dead.
(REUTERS/Social media via Reuters TV)
A woman cries as she prays for Tomislav Salopek in a local church in Vrpolje village, Croatia, August 12, 2015. An Egyptian group allied to Islamic State has published a photograph it says showed the beheaded body of a Croatian hostage it threatened to kill last week, the SITE monitoring service said on Wednesday. Reuters could not independently verify the authenticity of the picture, which carried a caption that said: "killing of the Croatian hostage, due to his country's participation in the war against Islamic State, after the deadline expired." Last week, an online video purportedly from Sinai Province showed a man who identified himself as Tomislav Salopek and said the group would kill him in 48 hours unless Muslim women in Egyptian jails were freed.
Leaked ISIS personnel files paint picture of group's recruits
A civilian woman carries her child during a battle with Islamic State militants, east of Mosul, Iraq, January 10, 2017. REUTERS/Azad Lashkari
Civilians walk past Iraqi Special Operations Forces (ISOF) during a battle with Islamic State militants, east of Mosul, Iraq, January 10, 2017. REUTERS/Azad Lashkari
A displaced man, who fled the Islamic State stronghold of Mosul, carries a woman in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. REUTERS/Thaier Al-Sudani TPX IMAGES OF THE DAY
Smoke rises from clashes during a battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. REUTERS/Thaier Al-Sudani
An Iraqi soldier is seen during a battle with Islamic State militants, north of Mosul, Iraq, December 30, 2016. REUTERS/Khalid al Mousily
Iraqi people flee the Islamic State stronghold in the town of Bartella, east of Mosul, December 28, 2016. REUTERS/Ammar Awad TPX IMAGES OF THE DAY
Iraqi people flee the Islamic State stronghold in the town of Bartella, east of Mosul, December 28, 2016. REUTERS/Ammar Awad
Iraqi rapid response forces cook food in their headquarters during the war against the Islamic state militants east of Mosul, Iraq, December 21, 2016. REUTERS/Khalid al Mousily
Mohammad Hassan, whose hand was chopped off by Islamic State militants, sits outside a house at Nimrud village, south of Mosul, Iraq, December 13, 2016. Picture taken December 13, 2016. REUTERS/Mohammed Salem
Displaced Iraqi boys, who fled the Islamic State stronghold of Mosul, warm themselves by a fire in Khazer camp, Iraq,December 15, 2016.REUTERS/Ammar Awad
Displaced Iraqi woman, who fled the Islamic State stronghold of Mosul, bids her relatives farewell as she leave Khazer camp to go home, Iraq December 10, 2016.REUTERS/Ammar Awad
Iraqi Christians come to visit the heavily damaged Church of the Immaculate Conception after Iraqi forces recaptured it from Islamic State in Qaraqosh, near Mosul, Iraq, December 9, 2016. REUTERS/Ammar Awad
An Iraqi father (L) mourns the death of his son, who was killed during clashes in the Islamic State stronghold of Mosul, in al-Samah neighborhood, Iraq December 1, 2016. REUTERS/Mohammed Salem
An Iraqi girl, who was wounded during clashes in the Islamic State stronghold of Mosul, lies on a bed at a field hospital in al-Samah neighborhood, Iraq December 1, 2016. REUTERS/Mohammed Salem
Displaced people who fled the clashes transfer to camps during a battle with Islamic State militants in Mosul, Iraq, November 30, 2016 REUTERS/Alaa Al-Marjani
A member of the Iraqi Special Operations Forces (ISOF) gestures in military vehicle during a battle with Islamic State militants in Mosul, Iraq, November 30, 2016 REUTERS/Alaa Al-Marjani TPX IMAGES OF THE DAY
A man gestures as other men sit on the ground as an Iraqi Special forces intelligence team check their ID cards as they search for Islamic State fighters in Mosul, Iraq November 27, 2016. REUTERS/Goran Tomasevic
Two men hold hands as an Iraqi Special forces intelligence team searches for Islamic State fighters in Mosul, Iraq November 27, 2016. REUTERS/Goran Tomasevic
Oilfields burned by Islamic State fighters are seen in Qayyara, south of Mosul, Iraq November 23, 2016. REUTERS/Goran Tomasevic TPX IMAGES OF THE DAY
Boys stand in front of oilfields burned by Islamic State fighters in Qayyara, south of Mosul, Iraq November 23, 2016. REUTERS/Goran Tomasevic
Civilians flee fighting between Iraqi forces and Islamic State fighters in Mosul, Iraq, November 20, 2016. REUTERS/Goran Tomasevic TPX IMAGES OF THE DAY
Smoke rises from clashes during a battle with Islamic State militants at the airport of Tal Afar west of Mosul, Iraq November 18, 2016. REUTERS/Thaier Al-Sudani
A member of Shi'ite fighters carries a weapon during a battle with Islamic State militants at the airport of Tal Afar west of Mosul, Iraq November 18, 2016. REUTERS/Thaier Al-Sudani
A displaced woman from the outskirts of Mosul covers herself in a blanket in the town of Bashiqa, after it was recaptured from the Islamic State, east of Mosul, Iraq, November 18, 2016. REUTERS/Khalid al Mousily
A girl attends classes after the city was recaptured from the Islamic State militants in Qayyara, Iraq, November 17, 2016. REUTERS/Ari Jalal
Federal police believe "that the documents are authentic," German Interior Minister Thomas de Maiziere said in an emailed statement noting the potential intelligence value of the trove.
"They provide a great chance for the procedure of furnishing proof and the participation also of Germans in terror activities," he said. "With this, we also better understand the structures of this terror organization and it will possibly function as a deterrent for some young radical people."
The cache could offer critical information to intelligence agencies -- from routes taken by foreign fighters to previously-unknown recruits and recruiters.
The leak and its origin deal a blow ISIS itself, too, signaling weakness at a time when the organization has been coming under increasing pressure.