Ringsted rubber-hammer assault planned with an AI chatbot (Denmark)
On 5 February 2025 a 22-year-old man struck his former father-in-law, 56, twice in the head with a rubber hammer in a car park in Ringsted, Denmark. Prosecutors told Roskilde District Court that he had used an AI chatbot to research how to injure the man as badly as possible without killing him, and that he got past the system's built-in safety restrictions by claiming he was gathering material for a book. On 4 December 2025 the court rejected his self-defence claim, convicted him of aggravated assault and two counts of criminal damage, and sentenced him to ten months in prison. No source names the AI system.
Legacy assessment: verified · Causal attribution supported · Added 05/09/2026