Kunstelj v. Slovenia — Prison sentence upheld for online harassment and defamation of private individuals

Case
Kunstelj v. Slovenia (Application no. 5257/22)
Court
European Court of Human Rights, Third Section
Date Decided
7 July 2026
Citation
ECLI:CE:ECHR:2026:0707JUD000525722
Topics
Freedom of expression, Defamation, Online harassment, Criminal sanctions
Source
Read the full opinion

Background

Mitja Kunstelj, a Slovenian national, published numerous blog posts on his personal WordPress and Google Blogger sites between 2010 and 2012 containing vulgar insults directed at two journalists, V.V. and Š.P., whom he had no prior contact with. The posts included extreme homophobic slurs, false allegations of sexual abuse and animal abuse, and degrading sexual characterizations. Although neither journalist was a public figure, they were well-known professionals.

V.V. and Š.P. initiated civil proceedings, and in 2012 a court issued an injunction prohibiting further such posts. Kunstelj ignored the order and republished the deleted posts on a new blog. Multiple interim injunctions followed, and he was fined EUR 10,000 twice for non-compliance. Despite this, he continued posting through the criminal proceedings, explicitly refusing to stop or pay the fines.

In March 2012, the two journalists filed a criminal complaint for insult and slander. Kunstelj’s blog had approximately 35,000 followers, and his posts were further amplified by other media outlets sharing links to them.

The Court’s Holding

The ECHR unanimously upheld Kunstelj’s criminal conviction and six-month prison sentence, finding no violation of Article 10 (freedom of expression). The Court confirmed that while the conviction interfered with his freedom of expression, the interference was prescribed by law, pursued the legitimate aim of protecting others’ reputation and rights, and was necessary in a democratic society.

The Court rejected Kunstelj’s claim that he was a journalist deserving enhanced protection, finding his blog was a “private journal” and his posts fell outside any journalistic activity or contribution to public debate. The posts targeted private aspects of the journalists’ lives unrelated to their profession. The Court emphasized that while criminal sanctions in defamation cases are not inherently disproportionate, prison sentences remain exceptional and must be justified only where other fundamental rights have been seriously impaired.

Critical to the Court’s analysis was the applicant’s persistent misconduct despite escalating non-custodial remedies. Civil injunctions and fines failed to deter him; he continued posting during criminal proceedings and even after being offered the opportunity to avoid imprisonment by ceasing the conduct. The Court found the domestic courts properly balanced competing interests and that their detailed reasoning—emphasizing the case’s unprecedented severity in Slovenian jurisprudence—was both relevant and sufficient.

Key Takeaways

  • Prison sentences for defamation and insult are permissible under Article 10 when aimed at protecting fundamental rights, provided domestic courts carefully balance competing interests and exhaustion of lesser remedies proves ineffective.
  • Article 10 does not protect purely vulgar personal attacks unrelated to matters of public debate, particularly when directed at private individuals with no public relevance to the statements.
  • Persistence in defamatory conduct—particularly contempt for court orders, refusal to comply with injunctions or pay fines, and continued harassment during proceedings—may justify custodial sentences as a last resort.
  • The scale of harm (35,000-follower audience) and amplification by third-party media outlets factor into proportionality analysis of both the original conduct and the appropriate sanction.

Why It Matters

This judgment clarifies the ECHR’s stance on criminal law protections for defamation and harassment in the internet age. It establishes that online mass distribution through personal blogs can trigger heightened scrutiny comparable to traditional media, and that Article 10’s protection has meaningful boundaries when speech is purely abusive rather than contributing to public discourse. For practitioners, it confirms that domestic courts enjoy significant discretion in graduated responses to defamation—civil remedies first, criminal sanctions only when prior measures demonstrably fail to protect vulnerable private individuals from ongoing reputational harm.

The judgment also underscores that Article 10 does not shield individuals who weaponize platforms to conduct sustained personal attacks. Kunstelj’s explicit refusal to comply with court orders, his mocking courtroom conduct, and his continued harassment after being offered an exit demonstrate that courts may treat recidivism and contempt as aggravating factors justifying imprisonment. This has implications for online harassment cases across Europe, signaling that persistent digital abuse targeting private individuals may face criminal consequences even absent incitement or direct threats.

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