Justine is clinical psychologist, family therapist and co-founder of the Lorentzhuis (1984), centre for systemic therapy, training and consultation in Haarlem, the Netherlands. She is a senior trainer in the Netherlands and abroad. She developed dialogical and systemic practices in the context of high conflict and violence in families. Her latest project addresses multi family work with high conflict divorced parents, their children and their social network. Finding power and vitality in the middle of tragedy is in the centre of her work. In these areas she is author of many publications.