Jewish law allows women to sleep with the enemy in order to get intelligence vital to Israel's security, a rabbi was quoted as saying in a local newspaper on Monday.
The mass-selling Yediot Aharonot quoted an academic article by Ari Shvat, an expert in Jewish law, in which he said it was acceptable to have sex with "terrorists" in order to obtain information leading to their arrest.
His study, which only referred to female agents, appeared under the title "Illicit Sex for the Sake of National Security" in a journal published by a religious studies institute in the Gush Etzion settlement bloc near Jerusalem.
It invoked biblical stories in which women seduced enemy combatants in order to gain valuable information, adding that it was "best to entrust such missions to licentious women".