Freedom of speech is a principle that supports the freedom of an individual or a community to articulate their opinions and ideas without fear of retaliation, censorship, or legal sanction. The right to freedom of expression has been recognised as a human right in the Universal Declaration of Human Rights (UDHR) and international human rights law. Many countries have constitutional laws that protect freedom of speech. Terms such as free speech, freedom of speech, and freedom of expression are often used interchangeably in political discourse. However, in legal contexts, freedom of expression more broadly encompasses the right to seek, receive, and impart information or ideas, regardless of the medium used.
Article 19 of the UDHR states that "everyone shall have the right to hold opinions without interference" and "everyone shall have the right to freedom of expression; this right shall include freedom to seek, receive, and impart information and ideas of all kinds, regardless of frontiers, either orally, in writing or print, in the form of art, or through any other media of his choice". The version of Article 19 in the ICCPR later amends this by stating that the exercise of these rights carries "special duties and responsibilities" and may "therefore be subject to certain restrictions" when necessary "[f]or respect of the rights or reputation of others" or "[f]or the protection of national security or public order (ordre public), or of public health or morals".