The attorney‑client privilege protects the flow of information between a client and their lawyer. Its purpose is to encourage full disclosure so the lawyer can give accurate advice. In most situations the privilege is absolute – the lawyer cannot reveal the conversation without the client’s permission.
However, the law recognizes that absolute secrecy can clash with other important interests, such as public safety or the administration of justice. When those competing concerns arise, specific statutory or case‑law exceptions allow the confidentiality to be lifted. Understanding those carve‑outs clarifies when a lawyer may be compelled—or even obligated—to speak.