New Brunswick Broadcasting Co v Nova Scotia (Speaker of the House of Assembly) is a leading Supreme Court of Canada decision wherein the court has ruled that parliamentary privilege is a part of the unwritten convention in the Constitution of Canada. Therefore, the Canadian Charter of Rights and Freedoms do not apply to members of Nova Scotia House of Assembly when they exercise their inherent privileges of refusing strangers from entering the House.
 New Brunswick Broadcasting Company, carrying on business under the name of MITV, had made a request to film the proceedings of the Nova Scotia House of Assembly with its own camera or one provided by the speaker. However, the Speaker refused television cameras in the House citing parliamentary privilege. New Brunswick Broadcasting Co. commenced a proceeding in the Supreme Court of Nova Scotia, Trial Division against the appellant seeking an order "allowing MITV to film the proceedings of the House of Assembly with its own cameras or by the Speaker providing full television coverage to all members of the television media, or otherwise". The Speaker joined issue. The Canadian Broadcasting Corporation was joined as a plaintiff at the corporation's request and MITV subsequently withdrew from the proceedings.
 Nathanson J of the Trial Division granted the plaintiff's claim, and ordered:
 The Speaker appealed to the Supreme Court of Nova Scotia, Appeal Division. In a 3-2 decision, the appeal was dismissed, but the last four paragraphs of the order were struck out.
 On appeal to the Supreme Court of Canada, in July 1991 Gonthier J certified the following constitutional questions to be addressed:
 In a 6-2 decision, it was held that the answer to Question 1 was No, and it was unnecessary to answer the other two questions.
 McLachlin J (as she then was) found that, although the "tradition of curial deference" does not cover all activities of a legislative assembly, it includes the privileges of legislative assemblies. This right is necessary to the functioning of that body and should not be set aside lightly. In addition, the majority agrees that the Charter of Rights and Freedoms does not apply to the house of assembly's privilege because the privilege, including the rights to exclude strangers, is part of the Constitution of Canada. The preamble to the Constitution Act, 1867 states that the constitution's intention is to establish "a Constitution similar in Principle to that of the United Kingdom". Thus, parliamentary privilege cannot be negated by another part of the Constitution. Furthermore, the "Constitution of Canada" in section 52(2) of the Constitution Act, 1982 is not meant to be exhaustive, and unwritten convention "can be" part of the constitution.
 La Forest J agreed with the majority's argument, subject to the observation that the constitutional status of parliamentary privilege inherits from being part of the colony's constitution (pre-dating the confederation) instead of being part of the United Kingdom's constitution.
 Lamer CJ held that the Court can inquire on the existence, but not the exercise, of parliamentary privilege. He agreed with Justice La Forest's assertion that the privileges enjoyed by Canadian parliament is different from the Houses of Parliament of the United Kingdom. Furthermore, he commented that Section Thirty-two of the Canadian Charter of Rights and Freedoms is not applicable to the action because section Thirty-Two concerns with the "legislation that the provinces have enacted with respect to privileges", not the exercise of it.
 Sopinka J argued that the exercise of the historic privilege in issue in this appeal was a pressing and substantial objective, which was to maintain order and decorum and ensure the smooth functioning of the legislative assembly. The present restriction on the number and location of cameras was rationally connected with the objective, and the alleged intrusion on the freedom of the press was not out of proportion to it.
 In dissent, Cory J argued that the exercise of privilege falls under Section 32 of the Charter and is subject to court's review. This follows that the ban on television cameras is reviewable by Canadian courts. Justice Cory concluded that the complete ban on cameras is not essentially necessary to the House's operation and "exceeded the jurisdiction inherent in parliamentary privilege."  This follows that the infringement of Section 2b of the Charter of Rights and Freedom is not reasonable within the context of Section 1.