S'porean man, 27, a doctor in Australia, allegedly filmed 460 victims with hidden devices in hospital toilets

A Singaporean doctor in Australia, who's being investigated for stalking and using an optical surveillance device to film women, has been slapped with fresh charges.

According to the Victoria Police, Ryan Cho, 27, now faces five further offences, including three counts of producing intimate images, one count of using an optical surveillance device and one count of failing to comply with a direction to assist.

Cho was arrested at a property in Croydon on Jul. 25, 2025.

He was out on bail after initially being arrested for allegedly hiding a mobile phone in a restricted staff toilet at The Austin Hospital, where he was employed as a trainee surgeon.

Investigations ongoing

Other hospitals where Cho worked between 2020 and 2025 have been identified as "workplaces of interest" as part of the investigation, the police said.

These hospitals are located in Melbourne’s CBD and regional Victoria.

Police have started to contact these hospitals and those potentially impacted during the time of the man’s employment.

According to court documents, Cho was found with 4,500 intimate videos of at least 460 alleged victims at the Austin Hospital, the Royal Melbourne Hospital and the Peter MacCallum Cancer Centre, ABC News reported.

Nurse found hidden phone in toilet

Court documents alleged that he was observed "loitering" around the emergency department on multiple occasions, either well before his shift began or when he was not rostered to work.

A nurse at the Austin Hospital found a mesh bag with a mobile phone in a staff toilet in early July and reported the incident to management after believing it to be recording.

The same bag was allegedly found by hospital security a few days later, and police were called.

Cho was arrested and two mobile phones, a laptop, a hard drive, several white mesh bags and removable hooks were seized from his house.

He allegedly refused to give authorities passwords to the devices.

Seized footage

One of the laptop hard drives seized from Cho contained 10,374 videos and images, ABC News reported.

Another phone contained a three-hour footage, which allegedly showed Cho setting up the phone, and more than an hour of footage showing the intimate regions of three women.

"The majority of victims depicted in these videos appear to be female doctors, nurses, paramedics and staff members of medical facilities the accused has worked at since 2021," the police alleged in court documents.

Cho allegedly categorised videos according to hospitals, wards and the names of the alleged victims.

Contesting charges, bail denied

Cho, meanwhile, is contesting the charges against him, ABC News reported.

According to the Australian Health Practitioner Regulation Agency register, his licence has been suspended and he cannot practise in Australia.

He was denied bail on the grounds that he had no ties to Victoria and thus posed a flight risk.

He is expected to return to court in November.

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