Dr Susan Pulman, forensic psychologist and clinical neuropsychologist
- Dr Susan Pulman, who is a forensic psychologist and a clinical neuropsychologist, also did a neuropsychological assessment of the offender in September 2022. Dr Pulman thought the CAT scan unremarkable, although that was not conclusive of whether he had suffered a brain injury. She noted documentation relating to the offender's referral in December 2005 to a brain injury rehabilitation program that he had sought due to difficulties he was experiencing with anger management and behaviour regulation. The records suggested he had difficulties at home managing his temper. He had been encouraged to seek support and treatment for those behavioural difficulties. Documentation from the St Vincent's Mental Health Service in 2008 revealed pre-head injury issues with frustration and tolerance which seemed to escalate after the head injury.
- The offender told Dr Pulman that consequent to his behavioural issues he left work as a baker and qualified for the disability support benefit, which he received until the incident and his arrest. His relationship also failed because of his aggressive behaviour and what he perceived to be personality changes after the injury. He became frustrated and disengaged from rehabilitation services.
- The offender told Dr Pulman that he became addicted to pain medications and went on to methadone in order to detox from Oxycontin. He did not consume alcohol. Dr Pulman noted that the offender received drug and alcohol counselling and case management from the Local Health District services between 2016 and 2020 for his use of methylamphetamine and cannabis. She noted:
"… indications that [the offender] had not attended a number of appointments that had been scheduled. So, a rather chaotic record of trying to get help but not pursuing it in any great - to any great length during that period."
- Dr Pulman placed the offender's intellectual functioning in the borderline range, observing:
"His processing speed, which is a domain that is … typically impaired in situations where individuals had a brain injury, processing speed, attention and concentration tend to be impaired relative to their upper skills and that was what was found in the case with [the offender] when I assessed him."
- Dr Pulman made a similar finding in respect of the offender's attention, concentration and verbal memory. Dr Pulman was asked about the offender's executive and adaptive functioning, which she explained is his higher order reasoning, problem solving, judgment and ability to adapt to a situation quickly. She said:
"They can also be impaired following a history of child maltreatment, drug and alcohol et cetera et cetera but when you are assessing an individual with a history of traumatic brain injury, you do look at whether or not they have impairments in mental flexibility, planning and organising, and in the case of [the offender] we did see impairments in those particular tasks, not in all the tasks but in some of them, and again that is what you will often see in cases where there's a history of a traumatic brain injury. You will see impairments, poor mental flexibility, poor ability to sort of respond to feedback, poor planning and organising. They're some of the executive deficits that are often - can be quite overwhelming for individuals that have had a brain injury and can make them more impulsive, less responsive to feedback, less willing to persevere with something."
- Dr Pulman found that the offender performed at an acceptable level on the measures that she used to assess his effort in the tests. She concluded that the offender had a cognitive impairment, as defined in s 5 of the MH & CIFP Act, due to what she found to be a traumatic brain injury.