A BANSTEAD doctor has pleaded guilty to secretly filming more than a 1,000 patients in a three-year campaign.
Hearing specialist Lam Hoe Yeoh, 62, of Garratts Lane, pleaded guilty at Croydon Crown Court in London this morning to seven counts of voyeurism, six counts of making an indecent photograph of a child and one count of possessing extreme pornography involving an animal.
Prosecuting, Peter Clement said described the offences, which began in 2011, as a "sophisticated, organised, planned, long running campaign of voyeurism", the scale of which was "vast and beyond any previously encountered by the Metropolitan Police Service".
The court heard that Yeoh filmed patients, children and colleagues, as well as friends he invited to his home.
In total officers found 22 covert recording devices at his home, in his car hidden in boxes for hearing aids, and at hospital offices including St Helier's in Carshalton.
His crimes came to light in April this year when a camera rigged in toilets in St Anthony's Hospital in Cheam fell on the floor and was discovered by a female colleague.
Upon viewing it, saw Yeoh had inadvertently recorded himself installing it.
Following his arrest, subsequent searches found hard drives and memory sticks of hundreds of video files, labelled using graphic descriptions of the contents, or the time and date the footage was recorded.
Yeoh had also edited together videos of specific people which featured in a number of his videos. The films began with him greeting them in his clinic - filmed by a pen camera - then shows his consultation with them and then cuts to the patients using the lavatory.
Mr Clement said Yeoh, a father of three, "grossly abused" his position and "betrayed" those who trusted him.
The court also heard he filmed passengers using train toilets, including one girl who was around 3 or 4 years old.
Yeoh's voyeurism offences involved 32 named victims and more than 1,000 unknown.
The offences all took place between January 1, 2011 and April 15, 2014.
In mitigation, defence counsel Sally O'Neill said Yeoh's "obsession" with collecting videos was his bid to gain "some sense of control" amid a busy work schedule.
Judge Warwick McKinnon will sentence Yeoh tomorrow morning (Wednesday).
Yeoh's wife, Ivy Muihong Sng, also faced a charge of voyeurism, which was this morning discontinued.
