Burnham has secured the early prison release changes he had been seeking, with the prime minister saying the move will mean hundreds more offenders remain in prison.
The issue centres on changes to arrangements for early release from prison. According to the prime minister, the changes would keep a larger number of criminals in custody rather than allowing them to leave under the existing approach.
The supplied material does not set out the precise mechanism of the proposed changes, the timetable for implementation or which categories of prisoners would be affected. However, it makes clear that delivering the shift is not straightforward and would require complex alterations to the current system.
The political significance lies in the prime minister accepting a change that Burnham had wanted, while also acknowledging that doing so carries practical complications. The impact, as described, would be measured in hundreds more people remaining behind bars.
The latest known position is that the prime minister has committed to keeping those additional offenders in prison, but the detail of how the changes will be carried out remains subject to the complexity identified in the announcement.