In 2008 Israel's highest religious court invalidated the conversion of 40,000 Jews, mostly from Russian immigrant families, even though they had been approved by an Orthodox rabbi.[52] Debate on what constitutes a valid Beth Din for conversion and for annulling conversions has caused divisions in the Orthodox world. It is an implicit judgment on the character and uprightness of the rabbis in that religious court. For example, when Rabbi Barry Freundel was arrested on charges of voyeurism for filming women converts at the mikveh he supervised, Israel's Chief Rabbinate initially threatened to review and possibly invalidate the conversions Freundel had been involved in approving.