Probation officer training
Evidence-rated crime-reduction intervention (EMMIE).
Effect on crime
reduces crime
Evidence quality
strong
Cost
low
What the evidence says
This intervention focuses on training probation officers in core correctional practices (CCPs) to enhance their supervisory skills and reduce reoffending rates among offenders. Evidence from a meta-analysis of 10 studies indicates that well-trained officers can lead to significantly lower reoffending rates, from 49.9% down to 36.2%. However, the quality of the underlying studies varied, raising questions about contextual influences.
How it works
Training in CCPs equips probation officers with essential skills such as effective use of authority, problem-solving, and building interpersonal relationships, which ultimately aim to improve offender supervision and reduce recidivism.
Implementation
Initial training averages around four days, with continued support and booster sessions recommended for effectiveness. Factors such as role clarification and the use of validated risk assessments are also noted as critical for successful implementation.
Source: College of Policing Crime Reduction Toolkit (What Works Centre for Crime Reduction). Summarised 2026-07-15. BlueLineHub is independent and not affiliated with the College of Policing.