| Study period | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Enrolment | Allocation | Post-allocation | |||||||||
 |  | T1 | T2 | T3 | T4 | T5 | T6 | T7 | T8 | T9 | |
ENROLMENT | |||||||||||
 Eligibility screen | x |  |  |  |  |  |  |  |  |  |  |
 Informed consent | x |  |  |  |  |  |  |  |  |  |  |
 Allocation |  | x |  |  |  |  |  |  |  |  |  |
INTERVENTION | |||||||||||
 MBT |  |  | x | x | x | x | x |  |  |  |  |
 PAU |  |  | x | x | x | x | x |  |  |  |  |
ASSESSMENTS | |||||||||||
 Questionnaires—participant | |||||||||||
 Overt Aggression Scale – Modified |  |  | x | x | x | x | x | x | x | x | x |
 EQ-5D-5L |  |  | x |  | x |  | x |  | x |  | x |
 Symptom Checklist-90–Revised Short Form |  |  | x |  | x |  | x |  | x |  | x |
 Alcohol Use Disorders Identification Test |  |  | x |  | x |  | x |  | x |  | x |
 Drug Use Disorders Identification Test |  |  | x |  | x |  | x |  | x |  | x |
 State-Trait Anger Expression Inventory |  |  | x | x | x | x | x | x | x | x | x |
 MacArthur Community Violence Screening Instrument |  |  | x | x | x | x | x | x | x | x | x |
 Short Form of the Revised Conflict Tactics Scales |  |  | x | x | x | x | x | x | x | x | x |
 Self-Harm Inventory |  |  | x |  | x |  | x |  | x |  | x |
 Suicidal Behaviours Questionnaire – Revised |  |  | x |  | x |  | x |  | x |  | x |
 Secure Facilities Service Use Schedule |  |  | x |  | x |  | x |  | x |  | x |
 Personality Inventory for DSM-5-Brief Form |  |  | x |  | x |  | x |  | x |  | x |
 SCID-II, ASPD Module |  |  | x |  |  |  | x |  |  |  | x |
 Brief Reflective Functioning Questionnaire |  |  | x |  | x |  | x |  | x |  | x |
 Redemption and Condemnation Self-Narrative Scale version 2 |  |  |  |  |  |  | x |  |  |  | x |
 Questionnaires—clinician | |||||||||||
 Service Engagement Scale |  |  |  |  | x |  | x |  | x |  | x |
 National Probation Resources, Evaluation and System Schedule |  |  | x |  | x |  |  |  | x |  | x |
 Police and health data | |||||||||||
 Police records |  |  | x |  | x |  | x |  | x |  | x |
 Health records |  |  | x |  | x |  | x |  | x |  | x |