Petitions/Review CPS disclosure practices and prosecution processes
StatusOngoing
Opened10 Mar 2026
Closes
Government response
Parliamentary debateNot eligible
Milestones

We call on the Government to commission an independent review into the Crown Prosecution Service’s training processes and competency standards for prosecutors handling disclosure obligations, and the disclosure regime under the CPIA 1996.

In our view recent cases suggests there are widespread CPS failures to disclose evidence, causing wrongful convictions and collapsed trials. We believe victims and defendants suffer when prosecutors inadequately understand or ignore disclosure duties. We think current training appear insufficient to prevent repeated mistakes, and that the disclosure regime requires urgent examination to ensure fair trials, protect the innocent, and maintain public confidence in criminal justice.

10,000
100,000

Constituency engagement ranking

Matthew Pennycook
1Matthew Pennycook MP
Greenwich and Woolwich
3
David Simmonds
2David Simmonds MP
Ruislip, Northwood and Pinner
2
Rushanara Ali
3Rushanara Ali MP
Bethnal Green and Stepney
1
Dawn Butler
4Dawn Butler MP
Brent East
1
Barry Gardiner
5Barry Gardiner MP
Brent West
1
Ruth Cadbury
6Ruth Cadbury MP
Brentford and Isleworth
1
Mr James Frith
7Mr James Frith MP
Bury North
1
Dr Rupa Huq
8Dr Rupa Huq MP
Ealing Central and Acton
1
James Murray
9James Murray MP
Ealing North
1
Danny Kruger
10Danny Kruger MP
East Wiltshire
1
Review CPS disclosure practices and prosecution processes — Petitions