About CourtLens
What is CourtLens and why?
CourtLens is a non-profit project that cleans and visualizes Supreme Court yearbook statistics to make judicial data accessible.
Although public, the data is locked in dozens of spreadsheets. CourtLens makes it readable for everyone.
Where does the data come from?
All figures come from the Supreme Court Judicial Yearbook and public open data.
- 대법원 사법연감 (司法年鑑) — 연 1회 발행되는 전국 법원 사건 접수·처리·재판기간 공식 통계 (공공누리 제1유형 (출처표시))
- 사법정보공개포털 — 법원별 사건 통계 및 사법 통계 자료 (공공누리)
- 공공데이터포털 (data.go.kr) — 사법·행정 분야 공공데이터 상시 제공 (공공누리)
How is the data processed?
Raw spreadsheets are parsed with Python and built into static JSON; the site is fully static.
- Extract 10-year series from the yearbook trend spreadsheets.
- Clean multi-row headers, merged and duplicate rows; annotate units.
- Save to JSON and expose the source table beneath every chart.
What are the limitations?
CourtLens never estimates figures absent from the source; some crimes are aggregated under broader categories.
Units and bases differ per table; this is not legal advice.
How often is it updated?
The yearbook is published annually; CourtLens currently covers 2015–2024.
Contact
For corrections and collaboration:
hello@krcourtlens.com