Definition
A privileged communication is a statement, disclosure, or exchange made within a legally recognized relationship of trust or duty that the law protects from compelled disclosure — particularly in judicial proceedings. The privilege belongs to a defined category of relationships in which open communication serves a social or institutional interest that the law deems more important than the competing interest in full evidentiary disclosure.
The term carries two distinct but related meanings in law, each with its own doctrinal structure:
1. EVIDENTIARY PRIVILEGE (attorney-client, physician-patient, clergy-penitent, spousal, and similar). A communication is privileged when made in confidence within one of the recognized relationships, for the purpose of obtaining or rendering professional advice or assistance, and with a reasonable expectation that it will not be disclosed. The holder of the privilege may prevent the other party from testifying about it and may prevent its introduction as evidence. The privilege survives the relationship and, in most formulations, the death of one party.
2. QUALIFIED PRIVILEGE IN DEFAMATION. A statement about another person's character or conduct is "privileged" when made in circumstances where a legal, moral, or social duty to communicate outweighs ordinary liability for defamatory content. Unlike the evidentiary privilege, this is generally a defense against tort liability rather than a shield against disclosure. It may be defeated by proof of malice. Absolute privilege — available for statements made in legislative, judicial, or executive proceedings — cannot be defeated by proof of malice.
---
Common Language
Modern common usage (Wiktionary): "Privileged" generally means enjoying special rights or advantages not available to others, often connoting wealth or social advantage. "Communication" is any act of conveying information.
Historical common usage (Webster's 1913): "Privilege" — a right, immunity, or benefit enjoyed by a person beyond the advantages of most; an exemption from a burden or duty.
The ordinary sense of "privileged" as social advantage is almost entirely misleading here. The legal privilege is not about the status of the speaker but about the nature of the relationship and the policy reasons for protecting the communication. A confidential disclosure from a client to an attorney is privileged regardless of whether either party is wealthy or powerful. The confusion runs the other direction as well: legally sophisticated readers sometimes assume all privileged communications share the same doctrinal framework, when in fact the evidentiary privilege and the defamation qualified privilege operate under different rules, different burdens, and different consequences for breach.
---
Common Confusion
PRIVILEGED COMMUNICATION vs. CONFIDENTIALITY. These are related but not identical. Confidentiality is an ethical or contractual duty not to disclose. Privilege is a legal rule that prevents compelled disclosure in proceedings. A communication may be confidential without being legally privileged (e.g., a client's business secrets shared with a consultant), and the distinction becomes critical when a subpoena or discovery demand is issued. The breach of confidentiality triggers professional discipline or contract liability; the breach of privilege is an evidentiary ruling or a waiver question.
ABSOLUTE PRIVILEGE vs. QUALIFIED PRIVILEGE. In defamation law, both are called "privileged," but they are categorically different in strength. Absolute privilege is a complete shield — no showing of malice or bad faith defeats it. Qualified privilege shifts the burden to the plaintiff to show malice. Treating them as interchangeable produces serious analytical errors in research.
---
Core Elements
For the evidentiary privilege to apply, most formulations require:
1. A recognized relationship — attorney-client, physician-patient, therapist-patient, clergy-penitent, spousal (marital communications), or a recognized governmental privilege such as executive or deliberative process privilege.
2. A communication — the privilege covers the substance of disclosures, not the mere fact of the relationship or the identity of the parties.
3. Made in confidence — the communication must have been made with an expectation of confidentiality, not in the presence of unnecessary third parties who would destroy that expectation.
4. For the purpose of the relationship — the communication must have been made to obtain or facilitate the service the relationship provides (legal advice, medical treatment, pastoral counseling, etc.).
5. Not waived — privilege is held by the client, patient, or communicant (not by the professional), and may be waived expressly or by conduct, including voluntary disclosure.
---
Recognized Forms
/SUBTYPES
ATTORNEY-CLIENT PRIVILEGE. The oldest and most litigated evidentiary privilege. Protects confidential communications between a client and their legal counsel made for the purpose of obtaining legal advice. Extends to in-house counsel in most jurisdictions.
PHYSICIAN-PATIENT (AND THERAPIST-PATIENT) PRIVILEGE. Protects disclosures made in the course of diagnosis and treatment. More variable across jurisdictions than attorney-client privilege; some states recognize it by statute only.
MARITAL COMMUNICATIONS PRIVILEGE. Protects confidential communications between spouses during the marriage. Distinct from the spousal testimonial privilege, which concerns whether one spouse may be compelled to testify against the other at all.
CLERGY-PENITENT PRIVILEGE. Protects communications made to an ordained minister, priest, rabbi, or equivalent in the course of discipline or spiritual counsel.
EXECUTIVE AND DELIBERATIVE PROCESS PRIVILEGE. A governmental privilege protecting communications within the executive branch, especially presidential communications and the internal deliberative processes of agencies. Constitutionally grounded at the federal level.
QUALIFIED PRIVILEGE (DEFAMATION). A defense available to defendants who made allegedly defamatory statements in circumstances — employment references, reports to authorities, statements between parties with a common interest — where the social value of candor outweighs strict liability.
---
Why It Matters in Research
The dual meaning of "privileged communication" is the first trap. Sources from the law of evidence and sources from the law of defamation use the same phrase to describe structurally different doctrines. A researcher pulling historical materials on privileged communication will find both strands mixed together — Burrill's entry, for instance, moves directly from the evidentiary privilege to the defamation privilege without clearly signaling the shift. Context and the surrounding treatise matter.
The attorney-client privilege has expanded substantially since the nineteenth century. Historical sources treat it primarily as a rule about testimony — whether a lawyer could be compelled to take the witness stand. Modern doctrine is far broader, governing pre-trial discovery, document production, and the conduct of investigations. Nineteenth-century sources will not reflect the modern work-product doctrine (which is separate from but adjacent to attorney-client privilege), and conflating the two in historical research produces anachronism.
The holder of the privilege matters enormously and is frequently misunderstood in older materials. Early authorities sometimes framed the privilege as belonging to the attorney, reflecting the professional obligation of confidentiality. Modern doctrine is clear that the client holds the evidentiary privilege and only the client (or their representative) can waive it. When reading historical cases or treatises, watch for this inversion.
Waiver doctrine has become increasingly complex and is largely absent from historical dictionaries. Inadvertent disclosure, selective waiver, and subject-matter waiver are modern refinements that cannot be sourced to pre-twentieth-century materials.
For defamation researchers, the qualified privilege in historical sources often appears in connection with employer references, grand jury testimony, and communications to public authorities — areas where modern statutes have since created explicit protections in many jurisdictions, sometimes displacing the common-law qualified privilege analysis entirely.
The corpus connections are significant: evidentiary privilege questions arise in civil procedure and discovery, in criminal law (especially government investigations), and in constitutional law (executive privilege). The defamation strand connects to tort law and First Amendment doctrine. A complete research picture requires crossing these encyclopedia sections.
---
Historical Dictionary Support
Burrill's Law Dictionary captures both strands in a single compressed entry, which is itself useful evidence of how nineteenth-century practice understood the term. The evidentiary definition — "a communication made to a counsel, solicitor or attorney, in professional confidence, and which he is not permitted to divulge; otherwise called a confidential communication" — is entirely consistent with modern doctrine in its basic structure, though it reflects the narrower testimonial framing of the era. The citation to Starkie's Treatise on Evidence points researchers to one of the foundational common-law evidence authorities.
Burrill's defamation definition follows without transition, illustrating the period's tendency to group privilege by its practical effect (immunity from legal consequence) rather than by its doctrinal context. This can mislead researchers who expect the term to have a single unified meaning across legal fields.
Burrill does not address waiver, the client as holder, the work-product doctrine, or the modern extension of privilege into discovery — all of which are essential to contemporary practice.
---
Jurisdictional Note
Physician-patient privilege exists by statute in most U.S. states but was not recognized at common law and does not exist as a federal common-law privilege. Attorney-client privilege is recognized in all U.S. jurisdictions and in federal courts, but the scope of exceptions (crime-fraud, fiduciary duty of corporations, etc.) varies. The marital communications privilege is recognized in all states but with varying exceptions, particularly in cases involving crimes against the spouse or children.
---
Encyclopedia Cross-Reference
Spousal Privileges — Testimonial Privilege and Marital Communications (The Law Mind Civil Procedure & Evidence Encyclopedia)
Executive Privilege — Presidential Communications and Deliberative Process (The Law Mind Constitutional Law Encyclopedia)
---