Introduction:
Secondary Investigative Analysts (SIAs) working within police and law enforcement organisations are repeatedly exposed to distressing experiences of others as part of their routine duties. This indirect exposure places SIAs at elevated risk of mental ill-health, yet tailored wellbeing interventions for this occupational group are lacking.


Purpose:
This study aimed to pilot-test multiple brief wellbeing interventions targeting known mental health concerns among SIAs, to inform future research and organisational wellbeing policy.


Method:
A controlled trial design was used to evaluate the effectiveness of a four-week wellbeing programme. Ninety participants were allocated to one of five groups: Control, Image Rescripting, Mindful Nature Walks, Psychoeducation, or Tetris Breaks. Participants engaged in their assigned intervention for 30 minutes per day and attended weekly researcher-led sessions for training and wellbeing check-ins. Self-report measures of perceived stress, anxiety, depression, wellbeing, and post-traumatic stress symptoms were completed at baseline and post-intervention. Outcomes were analysed using mixed-effects modelling.


Results:
All four interventions outperformed the control condition. While the control group showed worsening wellbeing and increasing PTSD symptoms, brief, targeted interventions—from psychoeducation to Tetris gameplay—produced meaningful improvements across anxiety, wellbeing, and trauma-related outcomes. Individual responses varied, highlighting the need for flexible, personalised support that can be proactively tailored to SIAs' preferences and needs in high-stress investigative roles.


Conclusions:
These findings suggest that targeted interventions can meaningfully support SIAs' mental health. Prototype approaches can address specific mental health concerns, ranging from structured strategies such as psychoeducation and image rescripting to brief, accessible approaches including Tetris gameplay or mindful nature walks. By offering a menu of evidence-informed options, organisations can provide support that is both proactive and adaptable, accommodating the diverse coping styles, symptom profiles, and engagement preferences of SIAs.