Question: Is it permitted to share with others lashon ha’ra that is public information, such as a decision from a beis din?
Short Answer: Negative information about someone, even if public, such as a ruling of a beis din, should not be shared with others on a consistent or organized basis, especially if the intent is to spread gossip.
Question: Does one violate the prohibition of lashon ha’ra when he or she speaks negatively about a person in front of him?
Short Answer: The poskim dispute whether lashon ha’ra is violated when spoken in front of the person being spoken about, but certainly other prohibitions are violated.
Question: Is it permissible to speak lashon ha’ra about a person who is constantly arguing and fighting with others?
Short Answer: In limited circumstances, such as to prevent future fighting, and with certain limitations, one may speak lashon ha’ra about a person who starts fights and arguments.