Hezbollah has carried out secret trials and executions against members suspected of collaborating with Israel, according to local sources and intelligence reports cited by Nidaa Al-Watan.

Residents of southern Lebanese border villages, including Aytaroun, Bint Jbeil, and Maroun al-Ras, recall that during the 2006 conflict with Israel, some homes were painted with special coatings that made it easier for aircraft to target Hezbollah positions. Locals said the paint was reportedly applied by Israeli agents and spies, and that Hezbollah later arrested suspected collaborators. In one instance, a building was targeted in an Israeli strike, killing those detained "collaborators" inside.

The practices today mirror Hezbollah’s current approach to suspected collaborators. Multiple sources confirmed that the group now conducts highly secretive investigations and trials, often including field executions, to safeguard its organizational security and public image.

“What differs today is the magnitude of the security breach, which exceeded Hezbollah’s expectations. In 2006, networks of agents and spies were limited. Between 2008 and 2009, Lebanese security agencies arrested several operatives and seized listening devices and computers," a military source told Nidaa Al-Watan. "Today, however, the number of agents arrested by the State, and the ordinary positions they hold within Hezbollah, do not match the scale of the breaches, which are likely at a high organizational level.”

The source added that these breaches have facilitated assassinations and targeted attacks against leaders, which could not have occurred without significant and active human infiltration.

Reports indicate that Hezbollah maintains strict secrecy during these investigations, even within its inner circles. According to sources close to the group, Iran has been involved in recent probes, sending officials from the Revolutionary Guard to oversee the investigation and identify vulnerabilities within Hezbollah.

“In all these investigations, the leadership ensures extreme secrecy. If asked, they might acknowledge a breach occurred but claim its cause is unknown, reflecting the seriousness of the findings,” one source said.

Intelligence officials said the probes are not confined to Lebanon. Some breaches reportedly originated in Tehran, enabling major assassinations in Lebanon and abroad, including attacks targeting Hamas leadership. The scale of these breaches made secrecy essential both for the investigations and for carrying out sentences.

Political analyst Ali Al-Amin described the group’s approach to internal security as uncompromising.

“Hezbollah has executed sentences, including death penalties, against suspected collaborators. The party does not hand its members over to Lebanese courts and never publicly announces the outcomes. Executions are carried out secretly, allowing the party to present enemy agents as ‘martyrs’ fulfilling a sacred duty,” he said.

Al-Amin noted that the true number of those subjected to internal trials remains unknown due to the strict secrecy surrounding the proceedings.

“Secrecy protects the party’s image and sanctity in the eyes of its supporters. Since its founding, Hezbollah has never officially revealed an Israeli agent within its ranks or publicly issued internal verdicts,” he added.