Background
Mark Hoggart was originally convicted and sentenced in February 2004 for three offences committed on 25 January 2003: wounding with intent to cause grievous bodily harm, injuring with intent to injure, and threatening to kill. The offending involved his girlfriend and his mother’s partner. After an escalating pattern of violence—including choking his girlfriend until she could not breathe and repeatedly stabbing his mother’s partner in the head, neck, and upper torso—Hoggart was sentenced to preventive detention with a five-year minimum period.
In 2025, the Court of Appeal quashed the preventive detention sentence and ordered re-sentencing. During the intervening 21 years, Hoggart had been released on parole twice: in February 2014 (recalled within months after a woman reported he had become obsessive and paranoid about her fidelity) and in September 2018 (leading to two domestic violence incidents in 2019 for which he received a nine-month District Court sentence and was recalled). The High Court re-sentenced him on 9 July 2026.
Hoggart’s criminal history extends back to his teenage years, including aggravated robbery and multiple assaults with intent to injure. Between June and July 2001, he subjected a girlfriend to repeated violent attacks, including sustained strangulation and head trauma, based on unfounded accusations of infidelity.
The Court’s Holding
Justice Downs declined to re-impose preventive detention, despite finding a clear pattern of serious offending directed at intimate partners across three decades (2001, 2003, and 2019). The judge acknowledged that Hoggart posed a real risk of future violent offending against women in relationships, particularly because his violence involved strangulation—behaviour the court noted as “inherently dangerous” and psychologically significant as it conveys lethal intent. The judge also accepted the Crown’s submission that a pattern of serious offending was established and that Hoggart had caused serious harm to the community.
The critical issue was whether preventive detention remained justified after Hoggart had spent more than 20 years in prison. The expert evidence was mixed: two psychiatrists (Dr Whiting and Dr Lehany) concluded the risk was difficult to assess or did not support a “high risk” finding; one psychologist (Mr Patel) assessed high risk; and another psychiatrist (Dr Dean) noted “considerable insight” and likely risk reduction through stable accommodation and employment. Justice Downs held that the preponderance of expert evidence did not clearly demonstrate “undue risk” and that the evidence would need to be far clearer to justify re-imposing preventive detention after such lengthy imprisonment. The judge imposed instead the seven-and-a-half-year finite sentence that Potter J said she would have imposed in 2004 but for preventive detention. With time already served, no additional imprisonment was imposed.
Key Takeaways
- Preventive detention—an indefinite sentence—was declined despite a 20-year pattern of intimate partner violence including strangulation, because the preponderance of expert evidence did not establish undue risk after such extended incarceration.
- Conflicting expert opinions on risk assessment were resolved by applying the principle that “lengthy imprisonment already served” requires clearer evidence of future dangerousness to reimpose preventive detention.
- The distinction between “real risk” and “likely” (more probable than not) proved analytically important but ultimately not decisive, as the court found the balance of evidence did not support either threshold with sufficient clarity.
- Rehabilitation efforts in prison, while credited as genuine progress, were cautiously treated because they remained untested outside the prison environment.
Why It Matters
This decision illustrates the modern tension in sentencing law between public protection and proportionality. Preventive detention—a mechanism designed for those posing extreme danger—is rarely re-imposed after extremely lengthy sentences. Even in cases of persistent intimate partner violence (a high-risk category), courts may prefer finite sentences if the defendant has already served substantial time and shown some rehabilitation progress. The judgment also demonstrates how courts navigate conflicting expert evidence on risk: when experts disagree, courts must weigh the preponderance rather than treating one specialist’s assessment as dispositive.
For practitioners, the case clarifies that time served functions as a meaningful constraint on re-sentencing powers, particularly for preventive detention. The court’s insistence that evidence of undue risk must be “clear” after 20+ years of incarceration sets a high bar for Crown applications to re-impose such sentences. It also confirms that a pattern of offending against intimate partners, even with serious violence and a traumatic brain injury, does not automatically satisfy the preventive detention threshold if expert assessment of future risk is genuinely divided.