In common law jurisdictions, legal professional privilege protects all communications between a professional legal adviser and his or her clients from being disclosed without the permission of the client. The privilege is that of the client and not that of the lawyer. The purpose behind this legal principle is to protect an individual's ability to access the justice system by encouraging complete disclosure to legal advisers without the fear that any disclosure of those communications may prejudice the client in the future.
History
The common law principle of legal professional privilege is of extremely long standing. The earliest recorded instance of the principle in English case-law dates from 1577 in the case of Berd v Lovelace the full report of which states: The principle originated as protection for individuals when accessing the knowledge and legal resources available to a lawyer and was said to stem from the "oath and honour" of the lawyer, a sort of special contractual relationship. It was based on the fact that the ordinary citizen could not safely navigate the complexities of the law and justice system without some assistance. However, without protection the quality of the advice would suffer as clients would be discouraged from making full disclosure to their legal representatives. As Lord Brougham put it in Greenough v Gaskell : The foundation of this rule is not difficult to discover. It is not on account of any particular importance which the law attributes to the business of legal professors, or any particular disposition to afford them protection... But it is out of regard to the interests of justice, which cannot be upholden, and to the administration of justice, which cannot go on without the aid of men skilled in jurisprudence, in the practice of the courts, and in those matters affecting rights and obligations which form the subject of all judicial proceedings. If the privilege did not exist at all, every one would be thrown upon his own legal resources, deprived of professional assistance, a man would not venture to consult any skilful person, or would only dare tell his counsellor half his case".''
In England and Wales, the rules on legal professional privilege are set out in common law. The Civil Procedure Rules 1998Rule 31.15 establishes a right to inspect documents in civil litigation, and provide that a party to whom a document has been disclosed has a right to inspect that document - except where the party making disclosure has the right to withhold such inspection. One of these rights is legal professional privilege. It is a privilege that attaches to the client in a client–lawyer relationship. It does not extend to advisors who are not legally qualified. It may only, therefore, be waived by the client. In the law of England and Wales, legal professional privilege is divided into two types: advice privilege, and litigation privilege, the former category being more absolutely and broadly-defined than the latter.
Australia
The Evidence Act 1995 and identical provisions in the Evidence Act 1995 of NSW and Tasmania now control when privilege prevents evidence is adduced during trial in any court. The rules of court in NSW extends the definitions in the Evidence Act to discovery and inspection of documents. The right, under legislation, has been renamed to reflect the fact that it is a right of the client. It is now client legal privilege. The courts regard privilege as a "substantive general principle which plays an important role in the effective and efficient administration of justice by the courts", not a mere rule of evidence. As such, it extends to all forms of compulsory disclosure, including search warrants. Furthermore, although the legislature may restrict privilege "the law ease the way for the legislature to ".
Canada
Solicitor–client privilege was initially a common law evidentiary principle similar to hearsay but has since become recognized as a substantive rule that is constitutionally protected. This recognition began with R. v. Solosky where Justice Dickson, in tracing its history, regarded it as a "fundamental civil and legal right" that guaranteed clients a right to privacy in their communications with their lawyers, even outside a courtroom. In R. v. McClure 1 S.C.R. 445, the Court found that solicitor–client privilege was a principle of fundamental justice, hinting that it may be protected under Section 7 of the Charter. In its general sense, Canada has adopted John Wigmore's definition of solicitor client privilege: Justice Lamer set out the test for solicitor–client privilege in Decoteaux v. Mierzwinski:
Attorney–client privilege is a legal concept that protects communications between a client and his or her attorney and keeps the communications confidential in both civil and criminal cases. The privilege encourages open and honest communication between clients and attorneys. However, in the United States, not all state courts treat attorney communications as privileged. For instance, Washington state law and the federal courts in applying federal law protect client only communicationa; an attorney's communication is protected as privileged only to the extent that it contains or reveals the client's communications. In contrast, California state law protects the attorney's confidential communications regardless of whether they contain, refer to, or reveal the client's communications. In addition, the United States Supreme Court has ruled that the privilege generally does not terminate upon the client's death. See Swidler & Berlin v. United States.
Exceptions
Privilege cannot be relied upon where the communication is used to facilitate a crime.
