Overview
- NRW police recorded almost 12,000 criminal incident files at schools through 22 September 2025, with 242 deployments for school violence so far this year.
- A University of Cologne dark‑figure survey of about 3,800 pupils in three Ruhr cities reports much higher delinquency than official data, which are affected by legal and statistical changes.
- The study highlights stronger increases among younger adolescents, with notable upticks among girls and in some indicators for non‑German children.
- Findings link offending to heavy social‑media use, increased exposure to parental violence, weaker school norms and reduced fear of sanctions.
- Separate state figures show right‑wing incidents at schools rising in several Länder in 2025, while six states lack systematic school‑level tracking, hindering comparisons.