Hayes, D. (2007). Investigated or Supported? The Social Work Response to Non Child Protection Referrals: Perspectives from Files, Fieldworkers and Families, Queen's University Belfast (PhD Thesis).
Stephens, J., Hayes, D. and Holliday, J. (2002). Evaluation of Diamond House Family Group Conference and School Group Conference Pilot Scheme, Barnardos.
Hayes, D. (2000). An Evaluation of the Family Group Conference Pilot Project in the Ulster Community and Hospitals Trust, Ulster Community and Hospitals Trust.
Hayes, D. (1999). An Exploration of Professionals' Views on the Use of Family Group Conferences in Child Protection Work, North and West Belfast Trust / University of Ulster at Jordanstown (MSc Dissertation).
Hayes, D. (1995). An Evaluation of the Process of Parental Participation at Child Protection Case Conferences in North and West Belfast Health and Social Services Trust, North and West Belfast Trust.