Mesirah (or mesira, Hebrew: to turn over) is the action in which one Jew reports the conduct of another Jew to a non-rabbinic authority in a manner and under the circumstances forbidden by rabbinic Law.[1] This may not necessarily apply to reporting legitimate crimes to responsible authority, but does apply to turning over a Jew to an abusive authority, or to a legitimate one who would punish the criminal in ways seen as excessive by Jewish community, though "excessive" punishment by non-Jews may be permissible if a precept of the Torah has been violated.[2]

The term for an individual who commits mesirah is moser (HE:מוסר) or mossur.[2] A person who repeatedly violates this law by informing on his fellow Jews is considered subject to "Din Moser" (law of the informer), which is analogous to "Din rodef" in that both prescribe death for the offender,[1] and according to some, in some circumstances he may be killed without warning.[3]

Source of the ban

The source of the ban comes from the Bava Kamma (HE:בבא קמא) section of the Babylonian Talmud.[4][5][6] Probably the law was instigated to ease Jewish life under Roman or Persian rule. This law is discussed in Babylonian Talmud, by Rambam and in Shulchan Aruch.[7] Shulchan Aruch, however, states that in the cases that if Jews do not testify against other Jews in the gentile court, it will be obvious that Jews are covering up for each other, they should testify.[8][9]

Maimonides states:

Whoever adjudicates in a non-Jewish court ... is wicked and it is as though he has reviled, blasphemed and rebelled against the law of Moses.[10]

Maimonides further explains: "It is forbidden to hand over a Jew to the heathen, neither his person nor his goods, even if he is wicked and a sinner, even if he causes distress and pain to fellow-Jews. Whoever hands over a Jew to the heathen has no part in the next world. It is permitted to kill a moser (informant) wherever he is. It is even permitted to kill him before he has handed over (a fellow Jew)."[11]

Modern times

According to Michael Broyde, there are many different opinions among 20th-century rabbis as to the extent and circumstances mesirah is still valid in modern times.[3]

According to The Times of Israel and a Channel 4 investigation, the concept of mesirah was used by a Haredi leader to protect community members investigated for child molestation from police investigation.[12][13]

The principle of mesirah has also been used to dissuade Jewish auditors from reporting other Jews to the IRS for tax fraud.[14]

Rabbinic courts in Israel have issued writs calling for social exclusion of Jews bringing legal issues to Israel's civil courts.[15]

Rabbi Chaim Kanievsky, a leading Israeli rabbi and posek in Haredi Jewish society ruled that reporting instances of sexual child abuse to the police is consistent with Jewish law.[16][17]. Other major Orthodox poskim in America, such as Rabbi Hershel Shachter also concur that abuse cases should be reported in full to the civil authorities.[18]

Mesirah has also been cited as one of the main reasons for the gross underreporting in the sexual abuse cases in Brooklyn's Haredi community.[19][20]

In Australia

The mesirah doctrine came under intense public scrutiny in Australia in early 2015 as a result of evidence given to the Royal Commission into Institutional Responses to Child Sexual Abuse relating to an alleged long-running and systematic cover-up of child sexual abuse and the institutional protection of perpetrators at the exclusive Melbourne boys' school Yeshiva College. On 28 January 2015 Fairfax Media reported secret tape recordings and emails had been disclosed, which revealed that members of Australia's Orthodox Jewish community who assisted police investigations into alleged child sexual abuse were pressured to remain silent on the matter. Criminal barrister Alex Lewenberg was alleged to have been "disappointed", and to have berated a Jew who had been a victim of a Jewish sex offender and whom he subsequently regarded as a mossur for breaking with mesirah tradition.[21] Lewenberg was subsequently found guilty of professional misconduct.[22]

In February 2015 Zephaniah Waks, an adherent of the ultra-Orthodox Hasidic Chabad sect in Melbourne, Australia, testified to the Royal Commission that following his discovery that one of his sons had been sexually abused by Rabbi David Kramer, a teacher at their school, Yeshiva College, he confronted the school's principal, Rabbi Abraham Glick and demanded that Kramer be sacked. Waks told of his shock when he learned a few days later that Kramer was still working at the school, and that he again confronted Rabbi Glick, who then claimed that Kramer had admitted his guilt "because he wanted to be caught", but that the school could not dismiss Kramer because (Glick claimed) he was at risk of self-harm. Waks also told the Commission that despite his anger, he felt constrained not to go to the authorities because of the doctrine of mesirah:

I thought this was absolutely outrageous, however if I reported this to the police I would be in breach of the Jewish principle of mesirah.

Waks said the concept of mesirah prevented members of the ultra-Orthodox Chabad sect of Judaism from going to secular authorities.

At the very least, the breach of mesirah almost certainly always leads to shunning and intimidation within the Jewish community and would almost certainly damage marriage prospects of your children.[23]

Giving evidence to the Commission on the day before his father, Menachem (Manny) Waks, one of three children from the Waks family who were sexually abused by staff at Yeshiva College, testified that after breaking mesirah by going public about his abuse, he and his family had been ostracised by rabbinical leaders, shunned by his community and subjected to a sustained campaign of abuse, intimidation and threats, which eventually forced Waks to leave Australia with his wife and children. He also testified about how members of the exclusive Chabad community had pressured him to abandon his advocacy:

I was in fact contacted by several considered community members, and they said to me that the anti-Semites are having a field day with my testimony and my publicity around this issue, and that if I cared about the community, I'd cease doing that straight away.

Counsel Assisting the commission then asked Waks how he felt having been accused of being an informer:

I am appalled by it obviously, because the concept of 'Mesirah' really, you can become a death target. Taken at its literal meaning, you become potentially a target who is legitimate to be murdered, because you've gone and cooperated with the authorities. Now, I've never felt threatened for my life, but it does highlight the severity in which this concept is held.[24]

In December 2017, the Commission's final report included a recommendation to Jewish institutions:

All Jewish institutions in Australia should ensure that their complaint handling policies explicitly state that the halachic concepts of mesirah, moser and loshon horo do not apply to the communication and reporting of allegations of child sexual abuse to police and other civil authorities.[25]


  1. Rabbi Michael J. Broyde. "Informing on Others for Violating American Law: A Jewish Law View". Retrieved 19 August 2012.
  2. Alfred S. Cohen (1984). Halacha and contemporary society. KTAV Publishing House, Inc. pp. 100–. ISBN 978-0-88125-042-8. Retrieved 27 February 2011.
  3. Broyde, Rabbi Michael J. "Informing on Others for Violating American Law: A Jewish Law View". Jewish Law.
  4. Talmud, b. Bava Kamma 117a
  5. Talmud, b. Bava Kamma 58a
  6. Goldberg, Rabbi Monique Susskind (August 2009). "Is it permitted to kill another Jew?". The Schechter Institutes.
  7. Hoshen Mishpat 388:9
  8. Cohen, Alfred S. (1984), Halacha and Contemporary Society, KTAV Publishing House, Inc., p. 101
  9. Dorff, Elliot N. (2003), Love Your Neighbor and Yourself: A Jewish Approach to Modern Personal Ethics, Jewish Publication Society, p. 185
  10. Goodman Kaufman, Carol (2 October 2003), Sins of Omission: The Jewish Community's Reaction to Domestic Violence, Basic Books, p. 76
  11. Hammerman, Joshua (5 June 2012). "Sex-Abuse Cover Ups: The Mesirah Mess". The Jewish Week.
  12. Miriam Shaviv (24 January 2013). "UK Haredi chief caught telling alleged victim not to tell police about abuse". The Times of Israel.
  13. Weiss, Dr. Ruchama; Breckman, Rabbi Levi (5 February 2009). "Parents ignore child abuse at rabbi's advice". Jewish World. Ynet News.
  14. Joshua Hammerman (5 June 2012). "Sex-Abuse Cover Ups: The Mesirah Mess". The Jewish Week.
  15. "Many ultra-Orthodox rabbis view use of state courts, in Israel and in the Diaspora, as a violation of a principle of Jewish law". The Jerusalem Post. 22 May 2013.
  16. Sokol, Sam (5 March 2015). "Leading haredi rabbi says sexual abuse should be reported to police". The Jerusalem Post.
  17. "Rav Chaim Kanievsky on Molester: "Logically, He Should Be Reported to Police"". 26 February 2015.
  18. "Regarding Mesirah - Rabbi Herschel Shachter". Retrieved 31 May 2018.
  19. Otterman, Sharon; Rivera, Ray (9 May 2012). "Ultra-Orthodox Shun Their Own for Reporting Child Sexual Abuse". The New York Times.
  20. Rachel Aviv, "The Outcast." After a Hasidic man exposed child abuse in his tight/knit Brooklyn community, he found himself the target of a criminal investigation. The New Yorker, Nov. 10, 2014, pp. 44-55.
  21. Baker, Richard; McKenzie, Nick (28 January 2015). "Jewish sex abuse victims pressured not to assist police, secret tapes and emails reveal". The Sydney Morning Herald.
  22. Cowie, Tom (24 March 2016). "Criminal lawyer Alex Lewenberg guilty of professional misconduct after asking sex abuse victim not to dob in a 'fellow Yid'". Retrieved 15 December 2017.
  23. Davey, Melissa (3 February 2015). "Rabbi was allowed to keep teaching after admitting abuse of children, inquiry told". The Guardian.
  24. Donovan, Samantha (2 February 2015). "Royal Commission hears Jewish school failed to deal with serial child abuser". ABC Radio National.
  25. "Royal Commission into Institutional Responses to Child Sexual Abuse". Recommendation 16.30. p. 158.
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