From Surf Wiki (app.surf) — the open knowledge base
Chilling effect
Discouragement of exercising rights by threats of legal sanctions
Discouragement of exercising rights by threats of legal sanctions
A chilling effect is generally understood to be when an individual, organization, or group is prevented from exercising their legal rights, self-censoring either the sharing of information or abstaining from doing an activity, out of fear of repercussions and harm if they act. Outside the legal context in common usage; any coercion or threat of coercion (or other unpleasantries) can have a chilling effect on a group of people regarding a specific behavior, and often can be statistically measured or be plainly observed. For example, the news headline "Flood insurance [price] spikes have chilling effect on some home sales," and the abstract title of a two-part survey of 160 college students involved in dating relationships: "The chilling effect of aggressive potential on the expression of complaints in intimate relationships."
Law
In a legal context, a chilling effect is the inhibition or discouragement of the legitimate exercise of rights by the threat of legal sanction. A chilling effect may be caused by legal actions such as the passing of a law, the decision of a court, or the threat of a lawsuit; any legal action that would cause people to hesitate to exercise a legitimate right (freedom of speech or otherwise) for fear of legal repercussions. When that fear is brought about by the threat of a libel lawsuit, it is called libel chill. A lawsuit initiated specifically for the purpose of creating a chilling effect may be called a strategic lawsuit against public participation (SLAPP). "Chilling" in this context normally implies an undesirable slowing.
History
In 1644 John Milton expressed the chilling effect of censorship in Areopagitica:
For to distrust the judgement and the honesty of one who hath but a common repute in learning and never yet offended, as not to count him fit to print his mind without a tutor or examiner, lest he should drop a schism or something of corruption, is the greatest displeasure and indignity to a free and knowing spirit that can be put upon him.
The term chilling effect has been in use in the United States since as early as 1950.{{cite web
It, however, became further used as a legal term when William J. Brennan, a justice of the United States Supreme Court, used it in a judicial decision (Lamont v. Postmaster General) which overturned a law requiring a postal patron receiving "communist political propaganda"{{cite web
The Lamont case, however, did not center around a law that explicitly stifles free speech. The "chilling effect" referred to at the time was a "deterrent effect" on freedom of expression, even when there is no law explicitly prohibiting it. However, in general, the term "chilling effect" is also used in reference to laws or actions that may not explicitly prohibit legitimate speech, but rather impose undue burden on speech.
Usage
In United States and Canadian law, the term chilling effects refers to the stifling effect that vague or excessively broad laws may have on legitimate speech activity.
However, the term is also now commonly used outside American legal jargon, such as the chilling effects of high prices or of corrupt police, or of "anticipated aggressive repercussions" in, for example, personal relationships.
A chilling effect is an effect that reduces, suppresses, discourages, delays, or infringes on a person's ability to freely express a view without fear on consequence.
An example of the "chilling effect" in Canadian case law can be found in Iorfida v. MacIntyre in which a party challenged the constitutionality of a criminal law prohibiting the publication of literature depicting illicit drug use. The court found that the law had a "chilling effect" on legitimate forms of expression and could stifle political debate on issues such as the legalization of marijuana. The court noted that it did not adopt the same "chilling effect" analysis used in American law but considered the chilling effect of the law as a part of its own analysis.
In the United States, Donald Trump's conflict with the media has been described as having a chilling effect.
International community
In the international community, chilling effects typically are used to refer to government or political censorship on democratic systems and actors, including journalists/media, academic institutions, and judicial functions.
Chilling Effects in international law cases can be separated into "regulatory chill" or "chilling expressions" issues. The first refers to when a government or nation refrains from passing legislation or exercising their authority over their political territory in order to avoid repercussions from international actors and/or foreign investors. Threats of sanctioning or pulling out from investment, or dismantling trade deals are some of the ways regulatory chill can be achieved.
In 2011, the Australia government passed a law that required all tobacco products to be sold in plain packaging in an effort to reduce smoking by making cigarette packs less appealing. In November of that year, tobacco company Phillips Morris Asia sued Australia on the basis that the law harmed their business and broke trade agreement rules between Hong Kong and Australia. This type of lawsuit is known as investment arbitration.
At the same time, the New Zealand government was preparing to pass similar legislation but delayed it for six and a half years while waiting for the lawsuit to conclude, in fear it would also get sued by tobacco companies for similar reasoning.
In 2015, Australia won the case when the Permanent Court of Arbitration concluded that Phillip Morris had performed an “abuse of rights” and ordered the company to assume the cost of the trial. Following this verdict, New Zealand moved forward with their own packaging legislation.
In Poland, a set of disciplinary rules allowed the government to question or punish judges for their court decisions or for requesting guidance from the Court of Justice of the European Union. This system was found to violate EU law in the 2021 CJEU ruling Commission v Poland (C-791/19). The rules created a situation of pressure on judges to avoid actions that might lead to disciplinary steps, which legal scholars describe as a chilling effect. The risk of penalties, even without direct punishment, limited the independence of the judiciary and its authority.
Case studies
In 1999, Costa Rican journalist Mauricio Herrera-Ulloa was found guilty on four charges of defamation for a series of seven stories he published exposing a corruption scandal of Costa Rican Ambassador Felix Przedborski. In response, Przedborski filed criminal defamation and civil lawsuits against Herrera-Ulloa and La Nación, and in 1999, Herrera-Ulloa was convicted, ordered to pay damages, to publish parts of the ruling after taking down the original stories, and his name was also entered into the record of convicted felons.
In 2001, Herrera-Ulloa and La Nación’s publisher at the time, Fernán Vargas Rohrmoser appealed to the Inter-American Commission on Human Rights which found the court violated the journalist's right to freedom of expression. The commission urged Costa Rica to overturn the convictions, erase the criminal record, and restore the removed online content but when the country failed to comply, the case was brought before the Inter-American Court of Human Rights (IACtHR) in 2003 and eventually overturned in 2004.
Regarding Ömer Faruk Gergerlioğlu's case in Turkey, the Office of the United Nations High Commissioner for Human Rights (OHCHR) said that Turkey's mis-use of counter-terrorism measures can have a chilling effect on the enjoyment of fundamental freedoms and human rights.
Chilling effects on Wikipedia users
Edward Snowden disclosed in 2013 that the US government's Upstream program was collecting data on people reading Wikipedia articles. This revelation had significant impact on the self-censorship of the readers, as shown by the fact that there were substantially fewer views for articles related to terrorism and security. The court case Wikimedia Foundation v. NSA has since followed.
Chilling effect of employer retaliation
Although speech may be constitutionally protected from being legally sanctioned by the government, employers in the U.S., for example, are generally free to fire employees who express opinions they disagree with or find offensive. The threat of the loss of employment as a consequence of expressing an opinion can have a chilling effect on speech, even on speech that occurs outside the workplace.
References
References
- (October 15, 2013). "Flood insurance spikes have chilling effect on some home sales". WWL‑TV Eyewitness News.
- (1993). "The Chilling Effect of Aggressive Potential on The Expression of Complaints in Intimate Relationships". Communication Monographs.
- chilling effect. (n.d.). Retrieved October 19, 2011, from http://law.yourdictionary.com/chilling-effect
- Green, Allen. (October 15, 2009). "Banish the libel chill". The Guardian.
- [[John Milton]] (1644) [[Areopagitica]], edited by [[George H. Sabine]] (1951), page 29, [[Appleton-Century-Crofts]]
- (May 1969). "The Chilling Effect in Constitutional Law". [[Columbia Law Review]].
- (3 February 2017). "Put it on Ice: Chilling Free Speech at National Conventions". Minnesota Journal of Law & Inequality.
- (1992). "Striking a Balance: Hate Speech, Freedom of Expression and Non-discrimination".
- "CanLII - 1994 CanLII 7341 (ON SC)".
- "CanLII - 1994 CanLII 7341 (ON SC)".
- Taormino, Ellessandra. (2025-08-05). "Trump's Attacks on Press Freedom Escalate: NPR, PBS Funding Cuts Explained {{!}} ACLU".
- Falkenberg, Kai. (28 Apr 2025). "The US used to be the gold standard for press freedom. Not any more". [[The Guardian]].
- "Factsheet on Chilling Effect on Freedom of Expression: Regional Human Rights Courts Perspective".
- Ankersmit, Laurens. (2020). "Regulatory autonomy and regulatory chill in Opinion 1/17". Europe and the World: A law review.
- Tienhaara, Kyla. (2017-12-22). "Regulatory Chill in a Warming World: The Threat to Climate Policy Posed by Investor-State Dispute Settlement". Transnational Environmental Law.
- "Investment tribunal dismisses Philip Morris Asia's challenge to Australia's plain packaging {{!}} WHO FCTC".
- (2022-03-01). "CJEU Case C-791/19 / Judgment {{!}} European Union Agency for Fundamental Rights".
- "Poland's Interrupted Transformation {{!}} IWM WEBSITE".
- Kerševan, Tanja. (2024-12-01). "Silencing journalists in matters of public interest: Journalists and editors assessments of the impact of SLAPPs on journalism". Journalism.
- Pech, Laurent. (2019-12-06). "Upholding the rule of law in the EU". Routledge.
- "Herrera-Ulloa v. Costa Rica".
- "Herrera Ulloa v. Costa Rica".
- "OHCHR | Press briefing notes on Turkey".
- Penney, Jonathon W.. (2016). "Chilling Effects: Online Surveillance and Wikipedia Use". Berkeley Technology Law Journal.
- "Wikimedia v. NSA: Challenge to Mass Surveillance Under the FISA Amendments Act". [[American Civil Liberties Union]].
- Paulson, Michelle. (10 March 2015). "Wikimedia v. NSA: Wikimedia Foundation files suit against the NSA to challenge Upstream mass surveillance". [[Wikimedia Foundation]].
- (2015-03-10). "Stop Spying on Wikipedia Users". New York Times.
- CATHY BUSSEWITZ and WYATTE GRANTHAM-PHILIPS. (September 16, 2025). "Workers commenting on Kirk's death learn the limits of free speech in and out of their jobs". Associated Press.
- Josephine Walker. (September 15, 2025). "Thousands flagged online for cheering Charlie Kirk's death". Axios.
- Bryan Metzger. (Sep 16, 2025). "JD Vance says if you see someone celebrating Charlie Kirk's death, tell their employer". Business Insider.
This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.
Ask Mako anything about Chilling effect — get instant answers, deeper analysis, and related topics.
Research with MakoFree with your Surf account
Create a free account to save articles, ask Mako questions, and organize your research.
Sign up freeThis content may have been generated or modified by AI. CloudSurf Software LLC is not responsible for the accuracy, completeness, or reliability of AI-generated content. Always verify important information from primary sources.
Report