Background
Kylie Truswell-Mobbs, aged 50, was charged with the murder of her husband David Mobbs, alleged to have occurred on or about 6 December 2023. David had been diagnosed with aggressive motor neurone disease and by December 2023 was bedridden and dying. The allegation is that the applicant administered a combination of medications — including baclofen, diazepam, morphine, and other drugs — through his feeding tube at his request to hasten his death and end his suffering. She was not charged until 2 April 2025 and had been remanded in custody since. An initial bail application was refused on 22 April 2025.
Evidence gathered at a committal hearing on 16 February 2026 significantly elaborated the circumstances surrounding David’s death. The couple’s two sons, David’s sister, his regular carers, and a support services manager all gave evidence that David had repeatedly and clearly expressed his wish to die, that he had told family members he did not want to live if he became incontinent, and that on the afternoon before his death he was fitted with a nappy for the first time — an event that deeply distressed him. Medical practitioners had informed the family on 5 December 2023 that voluntary assisted dying under Queensland’s scheme would take at least nine days, making that pathway unavailable given David’s condition.
In her police interview given the night of David’s death, the applicant — who chose to speak without a lawyer — described how David had asked her to administer his medications, and how she held him until he fell asleep in her arms. She expressed profound love for him and stated she wanted him to “go peacefully.” The applicant had no prior criminal history, had not attempted to flee the jurisdiction in the 16 months between her interview and her arrest, and had a background of caring for David full-time during the final months of his illness while herself managing ongoing health issues following bowel cancer.
The Court’s Holding
Smith J granted bail, finding that the applicant had established both a material change of circumstances since the first bail application and exceptional circumstances as required for a murder charge under the Bail Act 1980 (Qld). The primary change of circumstances was the evidence adduced at the February 2026 committal hearing, which the court found was favourable to the applicant and increased the realistic possibility of an acquittal or conviction on a lesser charge such as manslaughter or aiding suicide under s 311 of the Criminal Code 1899 (Qld).
The court also noted the significance of a direction given by Henry J in R v Yalu (Cairns Supreme Court, May 2026) — to the effect that a jury may apply its “innate sense of fairness and justice” in favour of an accused rather than strictly applying the law — and found that similar directions at the applicant’s trial were a realistic prospect given the evidence. Smith J acknowledged this direction is consistent with remarks endorsed by the High Court in Mackenzie v The Queen (1996) 190 CLR 348, and that a jury in a murder trial is entitled to return a manslaughter verdict even in a strong murder case if there is any evidence to support it.
On the statutory risk factors under s 16(1) of the Bail Act, the court found there was little risk of flight given the applicant’s strong ties to Queensland and her conduct in the 16 months before arrest, no realistic risk of reoffending, and that the risk of witness interference — which had concerned the earlier bail court — could now be adequately managed by conditions including a requirement that the applicant reside at a separate address and refrain from discussing the evidence with any Crown witness. The court also weighed that the applicant had by then served well over 12 months in custody and was a person of exemplary character with no criminal history.
Key Takeaways
- A second bail application for a murder charge can succeed where a committal hearing produces evidence materially more favourable to the accused than what was before the court on the first application — this can constitute both a “material change of circumstances” and “exceptional circumstances” under Queensland bail law.
- The court signalled that a jury direction inviting jurors to apply their “innate sense of fairness and justice” (sometimes called a Kirkman/Yalu direction) may be available in a compassionate assisted-death case, and its realistic prospect can weigh in favour of bail even where a prima facie murder case exists.
- Factors such as no prior criminal history, no flight risk, devoted personal character, time already served, and the passage of time diminishing witness interference concerns can collectively satisfy the “show cause” and “exceptional circumstances” thresholds for bail on a murder charge.
- The unavailability of voluntary assisted dying on a sufficiently rapid timeline was part of the factual context the court recognised in assessing the applicant’s circumstances and the weight of the evidence.
Why It Matters
This decision sits at the intersection of criminal bail law and the deeply contested question of assisted dying. Queensland’s voluntary assisted dying scheme — which the evidence showed required at least nine days to access — was effectively unavailable to David Mobbs in his final hours, and the court’s willingness to engage seriously with the compassionate context of the alleged offending signals that courts may scrutinise such cases differently from conventional murder. The reference to a jury direction permitting jurors to exercise their “innate sense of fairness” rather than strict legal reasoning is particularly notable: if adopted at trial, such a direction could effectively allow a jury to decline a murder conviction even where the technical elements are proved.
For practitioners, the case is a useful illustration of how committal hearing evidence can reset the bail calculus on a second application in a murder matter, and of how the cumulative weight of character evidence, time served, reduced witness-interference risk, and changed evidentiary landscape can together clear the high threshold required to grant bail to a person charged with the most serious offence in the Criminal Code.