The HoST programme: A pilot evaluation of modified dialectical behaviour therapy with female offenders diagnosed with borderline personality disorder

The Holloway skills therapy programme (HoST) at Her Majesty’s Prison and Young Offenders’ Institution Holloway is provided to women who, because of problematic behaviour associated with borderline personality disorder, are often excluded from treatment in prison and in the community. HoST addresses issues of offending behaviour, self-harm, suicidality and indiscipline, through a modified evidence-based treatment modality, dialectical behaviour therapy (DBT), which is a form of cognitive behaviour psychotherapy. This paper will outline the possibility of a modified DBT approach to working with female offenders in the prison setting. A pilot evaluation of female prisoners who received the treatment is also presented through a range of quantitative measures. In turn, positive outcomes with regard to reduction in time spent on the assessment and care in custody teamwork process, reduction in adjudications and improved overall mental health are presented. These findings are discussed along with the implications for clinical practice in the prison setting. The need for future structured research is also discussed.