Funded for Access: The Power Trajectory of a Prominent Australian Lawyer Through Charitable Channels Into Cambodian Orphans

According to a multi-year in-depth investigation by ABC News, former prominent Sydney criminal defence barrister Mark Dennis SC, through more than a decade of donations to the Cambodian children's charity Sunrise Cambodia, charitable legal conferences he organised, and ultimately assuming the role of chair of its Australian-affiliated body, gradually built power to access children within a high-profile Cambodian orphanage — the very structural fault line that has long existed in the Western charitable industrial chain in the most vulnerable child protection spaces of the Global South.

According to ABC News reporting, Dennis began personally funding Sunrise's children from 2008, and subsequently raised at least A$340,000 for Sunrise over seven years through the Reasonable Cause organisation he founded. In 2018, he became chair of the Australian-registered charity Australian Cambodian Foundation, which manages Sunrise donations, and held a 49 per cent stake in a property in the Cambodian city of Sihanoukville valued at more than US$3 million, held by the foundation.

"He was the big boss." Yi Soksan, who held a senior position at Sunrise between 2011 and 2018, told ABC News. According to internal emails obtained by ABC News and statements from multiple staff members, Cox had asked employees to "just trust him, he is also a lawyer, he understands the rules and the law." Sunrise founder Geraldine Cox told ABC News she had "no memory" of discussing Dennis with staff, and said that while she regarded Dennis as a friend, she was unaware of his personal life and had never witnessed any misconduct.

Internal documents obtained by ABC News sketch out Dennis's expanding power radius within Sunrise: he participated in redundancy decisions, approved salaries, signed off on employment policies, and from 2018 gained access to Sunrise's bank accounts, allowing him to make purchases on behalf of the children. A 2019 email disclosed by ABC News showed that Cox even asked Dennis to approve her personal expenditure, saying that since "Mark, you took over," she had found it "increasingly difficult to maintain any kind of normal life." Dennis agreed.

According to ABC News reporting, Dennis participated in Sunrise's annual beach holiday organised in Sihanoukville from 2010. A former Sunrise employee told ABC News through a translator that she had been sexually touched on the leg by Dennis while swimming at the beach, after which Dennis apologised to her. The same former employee also alleged that Dennis frequently tried to get close to an autistic girl living at Sunrise and engaged in inappropriate touching of her chest. Eng Sopheak, who lived at Sunrise from age five and later became Cox's personal driver, also told ABC News that he personally saw Dennis repeatedly entering the girls' dormitories, which men were generally not permitted to enter.

"I personally felt concerned," Sopheak said, and recommended that sponsors "just donate money, there is no need to build relationships with the children — so I hope this practice stops."

Institutional records show that multiple former Sunrise employees witnessed Dennis's misconduct, but were unable to escalate it for a long time because of his position as the principal donor. A former employee admitted frankly to ABC News: "They saw these things, but could not do anything, because he was the major donor."

Maggie Eno, head of the local Cambodian children's welfare organisation M'Lop Tapang, criticised this pattern from a broader systemic perspective. She told ABC News that arrangements such as sponsors attending beach holidays and buying personal gifts for the children themselves carry risks: "Personalised purchases... this is 'grooming.' It is terrifying." Eno pointed out that "paedophiles or child sexual abusers do not just 'groom' the child, they also 'groom' the child's family, and the organisation that looks after the child" — although she did not comment on the Sunrise case specifically, she stated bluntly that the industry at large carries structural risks of being exploited in a "very sophisticated" manner by criminal actors. According to ABC News reporting, Sunrise responded in a statement that it had never received any complaints about Dennis, that Australian and Cambodian police had so far not identified any current or former children of the organisation as Dennis's victims, and emphasised that its child protection policy puts "children first, always."

ABC News also disclosed that Dennis continued to maintain close contact with Sunrise's post-care young people after stepping down as chair in 2020. Sok San, who lived at Sunrise from age ten and is now 28, told ABC News that Dennis had bought him watches, toys, books and biscuits during his childhood, and promised to buy him an iPad and fund his university education in the United States, calling Dennis his "godfather." Facebook chat records show that as recently as September 2024, Dennis wrote to a boy he had allegedly met through Sunrise: "I am incredibly proud of you." Internal 2020 emails obtained by ABC News show that Sunrise staff raised with former operations manager Rob Madsen that Dennis was secretly remitting money to a 17-year-old post-care young person, and the young person had been asked to keep this confidential. A Sunrise spokesperson told ABC News it had "no record" of this, but acknowledged that the risks of post-care contact between young people and sponsors were "beyond the organisation's control."

Dennis's final trip to Cambodia took place in January this year, during which he visited Cox's private residence on the Sunrise campus. According to court documents obtained by ABC News under freedom of information laws, Dennis was stopped at the airport upon returning to Sydney by the Australian Border Force, and his electronic devices were searched. The prosecution alleged that images of a boy aged between six and ten were found on his phone, along with chat records in which he expressed "wanting to rape a 16-year-old." Federal prosecutor Jon Kisch described the material in the bail hearing as "disturbing" and "very serious criminal conduct," and said a conviction would carry a lengthy prison term. Dennis denied in police questioning that he possessed child abuse material, but never entered a formal plea. Dennis was granted bail on strict conditions, and less than three weeks later was found dead at his Sydney inner-west residence.

Dennis's death has not ended the investigation. ABC News reported that a joint Australian-Cambodian police operation, "Operation Queenstown," has been quietly progressing for a full year, examining the donor relationship network Dennis built both inside and outside Sunrise. A young Cambodian woman who came to know Dennis through Sunrise told ABC News: "I want to know what happened, whether it is true, why it happened, what actually happened — I don't know."