Collection

Standard Determinate Sentence (SDS40) release data

Detailed statistics on offenders released under Standard Determinate Sentence 40 (SDS40).

• From: Ministry of Justice and HM Prison and Probation Service
• Published: 24 April 2025
• Last updated: 30 October 2025 — See all updates

This transparency data publication presents the number of SDS40 releases at selected time points, broken down by prisoner demographics and sentence characteristics

Collection

• Standard Determinate Sentence (SDS40) release data
  • 24 April 2025
  • Transparency data
• Standard Determinate Sentence 40 (SDS40) : September 2024 to March 2025
  • 31 July 2025
  • Transparency data
• Standard Determinate Sentence 40 (SDS40) : September 2024 to June 2025
  • 30 October 2025
  • Transparency data

Published 24 April 2025

Last updated 30 October 2025 + show all updates

1. 30 October 2025

   Added a new publication - Standard Determinate Sentence 40 (SDS40) : September 2024 to June 2025

2. 24 April 2025

   First published.