Sibling Sexual Abuse

Delivered by

Dr Anna Markham


Format options

In Person | Online

Duration options

2 hrs | 3 hrs | 4 hrs | 6 hrs (1 day)


This training can be adapted across a range of diverse contexts and participants, and further bespoke elements can be added on request.

Content Summary: 

Sexual abuse involving siblings is likely to be the most common form of intra-familial sexual abuse. Sibling relationships can be complex and often the most enduring relationships we have. In the context of abuse, the characteristics of the sibling relationship and family environment can enable such behaviours to occur regularly and unchecked.

This workshop focuses on understanding the unique safeguarding concerns, challenges and implications for the family. Attendees will learn about the nature of sexual behaviours between siblings and the significant and complex short and long term impact on both children’s development and family functioning. The needs and adequate responses of families will be considered as well as what different kinds of support family members may need to make sense of the behaviour and to move forward in a positive way.

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Training delivered by

Dr Anna Markham

Dr Anna Markham is a Principal Forensic Psychologist.  Her extensive clinical experience has been in secure mental health, Her Majesty’s Prison service and NHS Child and Adolescent Mental Health Services.  She has worked across a range of settings including the youth secure estate, alternative education settings, community parenting programmes for children who are on the edge of coming into care or custody and children in contact with the youth justice system.

In addition to holding a doctorate in Forensic Psychology, Anna has undergone a range of specialist training courses including various therapeutic approaches including Multisystemic Therapy, Rational Emotive Behavioural Therapy, Good Lives Model, Non-Violent Resistance Therapy and child specific risk assessment tools and models for harmful behaviours (AIM3 under 12s and technology assisted harmful sexual behaviours, JSOAP-II, SAVRY: violence).

Anna currently works at a specialist forensic service primarily in a consultation role supporting professionals who are working with children with complex needs and who present with high risk of harm to others.  Anna is also a Teaching Fellow and coordinator of placements on a Forensic Psychology Practice Doctoral course at a leading UK University involving lecturing, supervising trainees in practice and assessing competence. 

Anna provides external consultation and training to a variety of organisations including Her Majesty’s Prison Service and Local Authorities.  She is also an expert witness and undertakes assessments for court including complex developmental and relational trauma and how this can contribute to severe behavioural difficulty in children and adolescents.