1. Administrative Office of the Courts & Department of Corrections 2013 Kentucky Smart Probation Program, Year One Report scfcenter.org/resources/Research/201311%20Kentucky%20SMART%20Report.pdf
2. DeVall , Kristen Christina Lanier David Hartmann 2011 Evaluation of Michigan's Swift & Sure Sanctions Probation Program courts.mi.gov/Administration/admin/op/problem-solving-courts/Documents/SS-Eval.pdf
3. Impact of swift and certain sanctions: Evaluation of Washington State's policy for offenders on community supervision;Hamilton;Criminology & Public Policy,2016