Groups – Interventions which target gangs or other co-offenders (individuals who offend in concert)

KEY:
 Rigor: M=Moderately Rigorous; R= Rigorous; VR=Very Rigorous
 Y-axis: F=Focused and Tailored; G=General
 Z-axis: R=Reactive; P=Proactive; H=Highly Proactive

 

Author (Year) Intervention Result Rigor Y-Axis Z-Axis
Braga et al. (2001) Operation Ceasefire was associated with significant reductions in youth homicide victimizations, shots-fired calls for service, and gun assault incidents.  full-circle M F HP
Braga (2008) Pulling levers intervention associated with significant decline in monthly gun homicide  full-circle M F HP
Braga et al. (2008) Pulling levers intervention associated with significant decline in monthly gun homicide and gun-related assault  full-circle M F HP
Braga et al. (2014) Operation Ceasefire associated with significant reduction in gang-related shootings full-circle R F HP
Bynum & Varano (2003) Aggressive patrol and order maintenance anti-gang initiative associated with substantial reported crime decreases in two target precincts  full-circle M G R
Fritsch et al. (1999) (curfew) Truancy and curfew enforcement associated with reduction in gang violence  full-circle M F P
McGarrell et al. (2006) A “lever-pulling” strategy was associated with a 34.3% reduction in the monthly homicide rate  full-circle M F HP
Cahill et al. (2008) Gang reduction program led to decrease of gang-related incidents in the target area, but also in the comparison area grey-circle M F P
Decker & Curry (2003) Curfew and gun enforcement anti-gang initiative leads to a very limited significant crime change in target neighborhoods  empty M F HP
Fritsch et al. (1999)

(saturated patrol)

Undirected, saturated patrol has no impact on crime  empty M G P