Co-creation of a violence risk assessment and management tool DASA-YEV for juveniles with mental health needs and risk for violent behaviour


Tella Lantta
RN, PhD, Adjunct Professor, Senior Researcher and University Lecturer
Tel.: +358504756068
Email: tella.lantta@utu.fi

Adjunct Associate Professor
Centre for Forensic Behavioural Science
Swinburne University of Technology, AUSTRALIA


Laura Väätäinen
Maiju Björkqvist


Veikko Pelto-Piri
Michael Daffern
Minna Anttila


The main goal of this study is to create a new practical and research-based tool to help staff assess and manage the risk of violence together with juveniles with mental health needs. The new tool DASA-YEV (Dynamic Appraisal of Situational Aggression – Youth Engagement Version) will be based on DASA-P and DASA-YV instruments. Risk management will be guided by best practices of non-coercive methods (e.g. Aggression Prevention Protocol from eDASA+APP by Maguire et el. 2019).


  1. Methods and outcomes of assessing and managing the risk of violence in a juvenile institutional environment – a systematic literature review.
  2. Co-creation and modifying DASA-YV and DASA-P to Finnish juvenile institutional care context.
  3. Develop a new dynamic violence risk assessment and management tool DASA-YEV for the juvenile institutional environment.
  4. Evaluate the impact of the new DASA-YEV tool on the prevention of youth violence in juvenile institutional environments – a feasibility quasi-experimental study.
  5. Digitalization and testing effectiveness of DASA-YEV.


  • This study will produce an evidence-based method which promotes juveniles’ engagement in their own care, and supports their capability to self-control and reinforces therapeutic alliance with professionals.
  • Scientific information on the current practices and development needs of risk assessment and management of violence, as well as on the co-creation process.


  • Örebro University, Sweden
  • Swinburne University of Technology, Australia
  • Hospital District of Helsinki and Uusimaa
  • Niuvanniemi Hospital
  • Humana, Telakka, juvenile detention centre


Mental Health Blueskies, University of Turku, Faculty of Medicine