Few mediations succeed unless the parties can communicate fully and openly without fear of compromising a potential court case. The promise of confidentiality mitigates such concerns. Organisations often see confidentiality as a reason to use mediation in lieu of litigation, particularly in sensitive areas. This contrasts with the public nature of courts and other tribunals. However mediation need not be private and confidential. In some circumstances the parties agree to open the mediation in part or whole. Laws may limit confidentiality. For example, mediators must disclose allegations of physical or other abuse to authorities. The more parties in a mediation, the less likely that perfect confidentiality will be maintained. Some parties may even be required to give an account of the mediation to outside constituents or authorities.