[25] Images of a mass arrest by Israeli soldiers in Gaza circulated widely during the war, showing men and boys with no known organizational affiliations stripped to their underwear, tied up, and blindfolded.

[43] On December 16, the OHCHR stated it had received "numerous disturbing reports from the north of Gaza of mass detentions, ill-treatment and enforced disappearances of possibly thousands of Palestinians," including children.

[75][78] Mondoweiss cited Al Jazeera reports that "Israeli forces took captive dozens of displaced people, relatives of patients and the injured", and that the detainees were transferred to undisclosed locations.

[82] On 30 November 2023, the Palestine Red Crescent Society stated that the whereabouts of the head of Khan Younis Emergency Medical Center had been unknown for nine days, following his arrest by Israeli authorities.

[88] On December 19, the Gaza Health Ministry stated that Israel was holding 93 healthcare workers "in inhumane conditions, under interrogation [and] under torture, starvation and extreme cold.

[102] In September 2024, a Palestinian Medical Relief Society paramedic stated that during his arrest, he was stripped naked, zip-tied, blindfolded, and that Israeli soliders put an assault rifle against his head, doused him in gasoline, and threatened to set him on fire.

[104] On December 7, widely-circulated video and images showed dozens of Palestinian men and boys in Northern Gaza blindfolded, stripped partially naked, and kneeling on the ground, guarded by Israeli soldiers.

[27][106] In a statement on December 7, the Euro-Mediterranean Human Rights Monitor (a Geneva-based NGO) referred to "reports that Israeli forces launched random and arbitrary arrest campaigns against displaced people, including doctors, academics, journalists, and elderly men" sheltering in UNRWA schools.

[36] A former legal adviser to the U.S. State Department described the treatment of the detainees as seemingly inconsistent with international law, and referred to Israel's presumption that military-aged men are fighters as "troubling".

[36] Muhammed Shehada, communications chief at Euro-Mediterranean Human Rights Monitor, told Al Jazeera that the images and videos could only have been taken by Israeli soldiers or media embedded with them, as no Palestinian photographers remain in the area.

[138] The Israel Police announced that since the beginning of the war, as of October 25, they have detained 110 individuals for allegedly promoting violence and terrorism, primarily through social medial; of these, CNN reported that "only 17 resulted in indictments.

The petition asked the High Court to order the disclosure of all names and whereabouts of Gaza residents held in Israeli detention facilities, and the release of any person unlawfully detained.

[52] According to Adalah, the petitioning organizations stated:[53] To date [i.e., October 24], the Israeli authorities have refused to provide any information about Gaza workers and other residents of the Strip who are apparently being held in detention centers, why or where they are being detained, under what law and for how long.Along with the High Court petition, Physicians for Human Rights–Israel reported on October 26 that it had contacted "several [international] bodies", including the International Committee of the Red Cross, urging them to "pressure the IPS [Israel Prison Service] and other Israeli security bodies to adhere to the law" in relation to the rights of detainees.

[155][156] The Public Committee Against Torture in Israel (PCATI) stated that there was a "lot of evidence of cases of violence and cruel and humiliating treatment by prison guards", and called for an investigation into the deaths of detainees in Israeli custody.

[158] On January 3, 2024, Human Rights Watch reported that Palestinian workers from Gaza detained in Israel since October 7 had been photographed naked, attacked by dogs, and dragged faced down in the gravel.

[176] The United Nations Human Rights Office warned that detainees "are reportedly not granted due process and judicial guarantees, as required by international law".

"[146] Also on October 29, the ACRI reportedly contacted Israel's Attorney General and Police Commissioner, demanding an end to the practice of publishing "humiliating" images of Arab detainees suspected of "expressing support for terrorism".

[178] The Defense for Children International stated that one in three juvenile detainees were being held under administrative detention, which it called a "a cruel tool" because "secret charges" could be added to their case without their lawyers knowing.

[180] The court ruled that considering the legal framework of the amendment, including its temporary nature and the balance mechanisms it establishes, especially under extraordinary national circumstances, there were no grounds for judicial intervention.

[191] In a written statement obtained by Al Jazeera, one of the detainees arrested on October 8 told HaMoked that he was "kept in a 'cage' without a roof, under the sun and without food, water or access to the toilet for three days.

In their report the whistleblowers stated the men were forced to sit upright and not allowed to move or talk, and guards were instructed to pick out "problematic" prisoners and punish them.

[17] The letter refers to Israel's Criminal Procedure Law, Article 106 of the Fourth Geneva Convention, and the 1989 High Court decision in Uda v. Commander of the IDF forces in the Judea and Samaria region.

[11][145] On December 19, Haaretz reported hundreds of arrested Palestinians from Gaza were being held at Sde Teiman base near Be'er Sheva, in southern Israel, and that a number had died.

[65] Mohand Taha, a stand-up comedian and influencer from Lower Galilee, spoke to Haaretz in relation to his arrest by "20 police officers" after posting an Instagram story in solidarity with Gaza residents.

[237][238] Israeli authorities alleged that the demonstration was "liable to lead to incitement and harm public peace, in violation of police directives"; the ACRI described the detentions as "a new and dangerous expression of the government's unrestrained scathing attack on Arab society in general and its leadership in particular.

[264] The IDF has alleged that interrogations of detainees captured in Israel following the October 7 attack revealed that Hamas commanders, who also held religious authority, had sanctioned targeting civilians, including children, women, and the elderly.

[265][266][267] In a report to the United Nations General Assembly on 24 October 2023, Francesca Albanese, the UN Special Rapporteur on the occupied Palestinian territories, noted that the failure to notify parents of the whereabouts of their children following an arrest is a violation of the Convention on the Rights of the Child, and can be considered a forced disappearance.

[269][270][271] The Times of Israel has sent reporters to join IDF reservist battalions during overnight raids in the West Bank, describing the arrests as quelling a potential front in the ongoing war.

[276] Russian Permanent Representative to the United Nations Vasily Nebenzya stated that the situation in the West Bank deserved close scrutiny by the Security Council, specifically citing "arbitrary arrests" by Israel.

[280] Doctors Without Borders stated it was "deeply concerned" about a staff member detained by the Israelis in Khan Younis, calling on the IDF to guarantee his "dignity and ensure his wellbeing".