What is a Single Expert Witness in Family Law?
A Single Expert Witness is an independent professional appointed to provide the Federal Circuit and Family Court of Australia (FCFCOA) with an objective, clinically informed assessment of the family unit undergoing separation. Rather than representing one parent or “taking sides,” the expert’s role is to assist the court by offering a balanced, evidence‑based opinion about the psychological factors relevant to the case when it comes to making parenting decisions.
In family law matters, this often includes:
Understanding each parent’s capacity to meet their child’s emotional and developmental needs
Exploring the child’s experiences, relationships, and wellbeing
Assessing family dynamics, communication patterns, and sources of conflict
Considering risks, protective factors, and the broader context of the family system
The expert’s responsibility is to the court, not to either party.
How does a psychologist become involved as a Single Expert?
A psychologist may be appointed:
By agreement between both parties
By court order
Through a solicitor’s request when an independent assessment is needed
At The Psychology Alley, this work is undertaken exclusively by Dr Heather Gan, who provides Single Expert Reports and Child Impact Reports as part of her practice. This service is separate from the therapeutic work offered within the clinic and is not delegated to other psychologists.
What does the assessment process involve?
The assessment is comprehensive and typically includes:
Individual interviews with each parent or caregiver
Interviews with the child or children, where appropriate
Observation of parent-child interactions
Review of relevant documents, such as school reports, police reports or previous assessments
The goal is to develop a clear, nuanced understanding of the family’s functioning and the factors influencing the child’s wellbeing.
What is included in a Single Expert Report?
The final report provides the court with:
A summary of the assessment process
Relevant background information
Clinical observations and psychological formulations
Consideration of risks and protective factors
Recommendations that support the child’s best interests
These recommendations may relate to parenting arrangements, communication strategies, therapeutic support, or other factors that promote stability and wellbeing.
How is this different from therapy?
Therapy and forensic assessment serve very different purposes.
Therapy focuses on:
Emotional support
Personal growth
Reducing distress
Building coping strategies
Strengthening relationships
Single Expert Work focuses on:
Objective assessment
Impartial analysis
Court‑directed questions
Recommendations based on evidence at assessment and clinical judgement
The psychologist providing a Single Expert Report cannot also provide therapy to the individuals involved to prevent conflict of interest due to dual roles.
Why do courts rely on Single Expert Witnesses?
Family law matters often involve complex emotional, relational, and developmental issues. The court may need specialised psychological insight to understand:
The impact of conflict on children
Each parent’s capacity to provide care
The child’s attachment relationships
Safety concerns or risk factors
The broader psychological context of the family
A Single Expert Witness helps the court in their process of making decisions that prioritise the child’s wellbeing and long‑term development.
When might a Single Expert be recommended?
This type of assessment is often used when:
Parents disagree about parenting arrangements
There are concerns about a child’s emotional or psychological wellbeing
There are allegations of risk, neglect, or family violence
The court requires clarity on complex family dynamics
A previous assessment is outdated or incomplete
The psychologist’s role is to bring structure, clarity, and clinical insight to situations that are often emotionally charged and difficult for families.
If you are a solicitor representing a client in parenting disputes, or a parent in the midst of litigation, please reach out via email to make an appointment for a Family Report
