Multisystemic Therapy

Multisystemic Therapy (MST) is an intensive, flexible, family and community-based treatment programme that addresses all environmental systems negatively affecting chronic and violent juvenile offenders’ behaviour to improve the quality of life for both the young people and their families.

United States
Impact indicators


  • In 2015, 12,915 families were served a full course of MST treatment worldwide. 



  • According to the organisation’s data, as a result of MST services, long-term re-arrest rates are reduced by an average of 42% and out-of-home placements reduced by 54%. Additional impacts include improved family functioning, decreased substance use, fewer mental-health problems and higher levels of client satisfaction compared to standard interventions. 
  • A 22-year follow-up study by the Missouri Delinquency Project showed youths who received MST had 36% fewer felony arrests, 75% fewer violent felony arrests, 33% fewer incarceration days and 37% fewer divorce, paternity and child support suits.


MST Services
MST Services has received worldwide recognition by several public and private institutions, including the United Nations Office on Drugs and Crime.