The attorney-client privilege applies to communications “to whom disclosure is reasonably necessary for the transmission of the information or the accomplishment of the purpose for which the lawyer is consulted.” Cal. Evid. Code § 952. This includes communications to an expert consultant.
Crime or Fraud Exception. If a client seeks advice from an attorney to assist with the furtherance of a crime or fraud or the post-commission concealment of the crime or fraud, then the communication is not privileged.
The privilege extends only to communications that the client intends to be confidential. Communications made in non-private settings, or in the presence of third persons unnecessary to accomplish the purpose for which the attorney was consulted, are not confidential and therefore are not protected by the privilege.
In the civil context, the statute provides as follows: “In a civil matter counsel shall not be competent or permitted to testify to confidential communications made to him by his client, nor shall the client be compelled to disclose the same, unless in either case this privilege is waived upon the trial by the client.” ...
The privilege extends to communications involving agents that facilitate the attorney-client relationship.
Rule 3: Label the top of the communication or the subject line of an email: "Privileged and Confidential: Attorney-Client Privileged Communication." This notice should be prominent and easily viewable as soon as someone receives the communication.
Commonly cited relationships where privileged communication exists are those between attorney and client, doctor–or therapist–and patient, and priest and parishioner.
The attorney-client privilege in the United States is often defined by reference to the “5 Cs:” (1) a Communication (2) made in Confidence (3) between a Client (4) and Counsel (5) for the purpose of seeking or providing legal Counsel or advice.
Three types of privilege: Those that protect confidential communications made in the course of a professional relatinoship. Exempt from testifying at all. Exempt from giving certain types of information.