Isn’t it improper for Jews to inform on other Jews?
Historically this is accurate and to be a “moser” (informant) was considered to be one of the gravest sins a person could commit. Throughout much of Jewish history Jews were a small, vulnerable and persecuted minority. Informing on a fellow Jew to the non-Jewish authorities not only threatened the safety and well-being of the one reported, but it threatened the security of the entire Jewish community. This is not the case today when Jews, although still a small minority, enjoy the legal protections and rights afforded to all citizens. In addition, while some would suggest that dealing with internal Jewish matters was better served by a Bet Din (rabbinic tribunal) according to Halacha (Jewish law), these tribunals today do not have the authority or power to deal with these matters. Not going to the civil courts and law enforcement would be irresponsible.
