Home Office · ODS · quarterly · UK
Immigration system statistics: immigration detention summary tables
Table Det_01 runs periods down the rows (calendar years then the two latest year-ending periods) with one column per series. Entering and leaving detention count occurrences, not individuals; in detention is the count on the last day of the period.
- Official page
- https://www.gov.uk/government/statistical-data-sets/immigration-system-statistics-data-tables
- Authority
- First-party official statistics · OGL-UK-3.0
- Latest release
- Year ending June 2026, published 27 August 2026
- Next scheduled
- 26 November 2026 (official date)
- Extractor
- ingest/ukdata/extractors/ho_detention_summary.py
Metrics read from this publication
| Metric | Sheet · table | Row label | Unit |
|---|---|---|---|
| People entering immigration detention | Det_01 · Det_01 | period | entries |
| People in immigration detention | Det_01 · Det_01 | period | people |
Releases ingested
| Published | Release | Observations | File |
|---|---|---|---|
| 27 August 2026 | Year ending June 2026 | 36 | immigration-detention-summary-jun-2026-tables.ods sha256 0ffdd04eae8e5ab3… |