Detectives investigating the activities of Adina Mihai and Madalin Dumitru, a Romanian couple convicted of drugging and robbing men, believe there may be additional victims and are appealing for anyone affected to come forward.
The pair targeted men who responded to advertisements for paid sexual services, visiting them at their homes before administering a powerful sedative. Their intention was to steal cash and jewellery, but tragically two men lost their lives after consuming wine spiked with the sedative GBL.
Mihai, 31, and Dumitru, 30, were both sentenced to 17 years in prison in a court hearing on Thursday, 13 August, following a joint investigation by Thames Valley and Gloucestershire police forces.
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Over a period of 12 months, the couple targeted at least four men. Among the victims were Malcolm King from Bagendon, Gloucestershire, and Gary Mouat from Banbury, Oxfordshire, who both died as a result of the druggings.
The investigation broadened after Thames Valley Police issued a nationwide bulletin linking the two cases, leading to the discovery of the pair’s wider offending.
Detective Inspector Adam Stacey, from Gloucestershire’s Major Crime Investigation Team, highlighted the possibility of further victims and encouraged them to come forward, recognising the sensitivity surrounding these crimes. “We know there are other victims who survived, some who featured in our case and others who did not. We fully understand why some may hesitate to report what happened, but support is available and we urge anyone affected to contact us,” he said.
Detectives noted a significant time gap between the deaths of Mr King in August 2024 and Mr Mouat in July 2025, suggesting Mihai and Dumitru likely continued their offending during this period.
Detective Inspector Michael Roddy of Thames Valley Police added, “While our focus has been on the period between Malcolm’s death and the couple’s arrest in July last year, we believe other victims may exist. We encourage anyone who may have been targeted, whether through drugging or other means, to come forward. We are taking these matters extremely seriously.”
Police collaborated with the National Crime Agency and law enforcement agencies across the country to identify any other potential victims or unexplained deaths linked to the couple, but no further fatalities have been found.
Detectives emphasised the calculated nature of the couple’s crimes, with Mihai and Dumitru exploiting vulnerable men to steal from them after administering sedatives without regard for dosage or safety. The approach involved knocking victims unconscious and leaving them isolated, often in humiliating circumstances, with the expectation that they would not report the incidents.
“Their actions were inherently dangerous,” said Detective Inspector Stacey. “We are relieved to have removed them from the streets and prevented further harm.”
Detective Inspector Roddy described the pair as reckless and dangerous, noting their lack of understanding of the drugs used and the risk posed to men of varying ages and physical conditions. “Administering GHB without knowledge of safe dosages is life-threatening. Tragically, in two cases, the victims never regained consciousness,” he said.