Key Takeaways
- Forensic scientist Rian Morgan‑Smith testified that Shulai Wang could have been detained in a suitcase or similar container in the defendants’ garage before her death.
- Blood‑stained foam boards recovered from a porta‑cot in the defendants’ Orewa home showed a 30‑40 cm square stain on the inner surface, with no blood on the exterior, suggesting possible cleaning attempts.
- Luminol testing of the garage laundry area yielded four small positive reactions, but follow‑up blood tests were inconclusive; vehicles linked to the case showed no visible blood staining.
- The Crown alleges Wang was locked in a tent, deprived of food and medication, and that her death resulted from kidnapping and manslaughter; the defendants deny all charges.
- Police arrested Kaixiao Liu and Lanyue Xiao at Auckland Airport in June 2024; Liu later refused to provide passwords for digital devices during a subsequent search warrant, hindering the investigation.
- The trial continues at the Auckland High Court, with forensic evidence, witness testimony, and police procedures central to the prosecution’s case.
Background of the Case
Shulai Wang, a 70‑year‑old Chinese woman, was found dead in Gulf Harbour two years ago, her body wrapped in multiple layers of rubbish bags and discovered by a fisherman. Police investigations linked her death to Kaixiao Liu, his wife Lanyue Xiao, and Liu’s parents, Xiuyun Li and Jingui Liu, who are accused of kidnapping and manslaughter. The Crown contends that Wang traveled to New Zealand seeking religious instruction from Liu, only to be unlawfully confined and deprived of basic needs before her demise. The defendants have consistently denied all allegations, setting the stage for a contentious trial that hinges on forensic and circumstantial evidence.
Forensic Testimony on Possible Suitcase Detention
During the Auckland High Court proceedings, forensic scientist Rian Morgan‑Smith of Public Health and Forensic Science (formerly ESR) testified that Wang might have been detained in a suitcase or similar container located in the defendants’ garage before her death. When Crown prosecutor Henry Steele posed the question, “Because of the situation that Ms Wang might have been detained in a suitcase or similar in the garage area?” Morgan‑Smith affirmed, “Correct.” This statement introduced a critical line of inquiry into how the victim could have been moved or concealed prior to the discovery of her body, linking the garage’s contents directly to the alleged crime scene.
Evidence from the Orewa Residence: Tent and Associated Items
Morgan‑Smith described a thorough search of the defendants’ Orewa property in July 2024, noting a tent pitched on the deck, bags of garden stones, and various items inside the tent, including a pram, a porta‑cot wrapped in a plastic bag, another plastic bag containing foam boards, a mattress, and a blue plastic sheet. Although no blood was detected on the porta‑cot itself, the internal examination of the foam boards revealed significant findings that would later become pivotal to the prosecution’s narrative about potential violence and cleanup efforts.
Blood‑Stained Foam Boards: Inner Surface Stain
The forensic expert reported that the two foam boards, referred to in court exhibits as the “base,” were attached by Blu Tack. When separated, an area of blood staining measuring approximately 30‑40 cm square was observed on the inner surfaces of the boards, while the outer surfaces showed no visible blood. Morgan‑Smith suggested that the staining could have originated from vomiting, but the location and pattern raised questions about possible trauma or bodily fluid exposure inside the porta‑cot before the boards were reassembled.
Indications of Cleaning Attempts
Observing the physical condition of the blood‑stained foam boards, Morgan‑Smith noted damage consistent with something rubbing across the board’s surface while it was soft or wet. He opined that this pattern “may indicate some attempt at cleaning the blood on the board.” Such an inference supports the prosecution’s claim that the defendants may have tried to conceal evidence after an incident, reinforcing the argument that the bloodstains were not merely incidental but linked to a violent episode involving Wang.
Luminol Testing in the Garage Laundry Area
The garage’s laundry area underwent luminol testing, which produced four small spots that reacted positively for the potential presence of blood. However, subsequent confirmatory blood tests on those spots proved inconclusive, leaving the significance of these reactions uncertain. Morgan‑Smith explained that while luminol can detect trace amounts of blood, false positives or degradation over time can impede definitive conclusions, highlighting the challenges faced when relying on preliminary screening methods in a complex crime scene.
Vehicle Examination for Biological Evidence
Two vehicles associated with the case—a white Mercedes van linked to Kaixiao Liu via CCTV footage from Gulf Harbour Marina and a petrol station, and another unspecified vehicle—were subjected to biological evidence testing. Morgan‑Smith stated that no visible blood staining was observed in the van, and no biological material was recovered that could be directly tied to Wang. This outcome weakened any direct forensic link between the vehicles and the alleged crime, shifting focus toward indoor evidence such as the tent, foam boards, and garage items.
Cause of Death and Anatomical Findings
When asked about the cause of death, Morgan‑Smith testified that there was “no anatomical cause of death” identifiable from the remains. This statement underscored the reliance on circumstantial and trace evidence rather than overt trauma markers. The absence of clear anatomical indicators complicated the prosecution’s task of proving manslaughter, compelling them to build a case around the alleged confinement, deprivation of necessities, and subsequent concealment efforts reflected in the forensic findings.
Cross‑Examination and Limits of Forensic Opinion
During Kaixiao Liu’s cross‑examination, Morgan‑Smith clarified procedural limits of his role. He agreed that inconclusive blood test results would not be recorded as definitive evidence of blood, and he could not determine the age of the blood stains recovered from the foam boards. Furthermore, when Liu inquired whether his responsibility was to assist police enquiries without judging the truth of the police theory, Morgan‑Smith affirmed, “Correct.” These exchanges highlighted the forensic scientist’s duty to present factual findings while leaving ultimate interpretations to the trier of fact.
Arrest and Subsequent Police Interactions
Detective Sergeant Mark Renfree testified that he participated in the arrest of Kaixiao Liu and Lanyue Xiao at Auckland International Airport on 30 June 2024, following a Customs alert. Liu initially provided an address in Royal Oak; a later search warrant at his Orewa residence in late August saw officers requesting passwords for digital devices found in the house. Liu declined, citing fatigue, headache, and lack of sleep, and repeatedly refused to comply despite additional requests. Officer Liwei Guo corroborated that Liu had ample opportunity to provide the passwords but instead pleaded, “Please help us. This is a devastating blow to us.” Liu was also charged with failing to meet obligations concerning computer system search, adding a procedural dimension to the case.
Current Status of the Trial
The trial continues at the Auckland High Court, with the prosecution relying heavily on the forensic testimony of Morgan‑Smith, the physical evidence from the tent and foam boards, and the circumstantial narrative of alleged confinement and deprivation. The defense challenges the sufficiency and interpretation of the evidence, emphasizing the lack of definitive biological links and the possibility of alternative explanations for the findings. As the proceedings unfold, the jury will weigh the scientific data, witness accounts, and police conduct to determine whether the Crown’s allegations of kidnapping and manslaughter against Shulai Wang are proven beyond reasonable doubt.