Methods	Randomised controlled trial
Participants	109 seventh grade school students 45% Male, 99% Black
Location	United States
Interventions	Gang resistance, education and training (GREAT). Intervention involves leadership skills development and a character education curriculum. The curriculum involved drug resistance, gang resistance, and non‐violent confrontational skills among others.
Programme deliverer	Police Officer, assisted by two teachers
Evaluator role	Independent evaluator
Outcomes	Out‐of‐school suspension In‐school suspension Office referrals Tardies Unexcused absences Students achieving honour roll
Length	Nine weeks
Assessment	Baseline and post treatment
Attrition	Results suggest no attrition
COI statement	Not presented
CoFI	Unlikely. Researcher was a PhD student who asked permission to run an evaluation implemented by the Metropolitan Police Service (see appendix B).